RNSG 2201 _ EXAM 5 RNSG 2201 | Download To Score An A+ | Answers Correctly Marked 100%

EXAM # 5 RNSG 2201 CH. 23, 24, 25, 26 Chapter 23: The Child with Fluid and Electrolyte Imbalance MULTIPLE CHOICE 1. What substance is released from the posterior pituitary gland and promote s water retention in the renal system? a. Renin b. Aldosterone c. Angiotensin d. Antidiuretic hormone (ADH) ANS: D ADH is released in response to increased osmolality and decreased volume of intravascular fluid; it promotes water retention in the renal system by increasing the permeability of renal tubules to water. Renin release is stimulated by diminished blood flow to the kidneys. Aldosterone is secreted by the adrenal cortex. It enhances sodium reabsorption in renal tubules, promoting osmotic reabsorption of water. Renin reacts with a plasma globulin to generate angiotensin, which is a powerful vasoconstrictor. Angiotensin also stimulates the release of aldosterone. 2. Nurses should be alert for increased fluid requirements in which circumstance? a. Fever b. Mechanical ventilation c. Congestive heart failure d. Increased intracranial pressure ANS: A Fever leads to great insensible fluid loss in young children because of increased body surface area relative to fluid volume. The mechanically ventilated child has decreased fluid requirements. Congestive heart failure is a case of fluid overload in children. Increased intracranial pressure does not lead to increased fluid requirements in children. 3. What factor predisposes an infant to fluid imbalances? a. Decreased surface area b. Lower metabolic rate c. Immature kidney functioning d. Decreased daily exchange of extracellular fluid ANS: C The infants kidneys are functionally immature at birth and are inefficient in excreting waste products of metabolism. Infants have a relatively high body surface area (BSA) compared with adults. This allows a higher loss of fluid to the environment. A higher metabolic rate is present as a result of the higher BSA in relation to active metabolic tissue. The higher metabolic rate increases heat production, which results in greater insensible water loss. Infants have a greater exchange of extracellular fluid, leaving them with a reduced fluid reserve in conditions of dehydration. 4. What is the required number of milliliters of fluid needed per day for a 14-kg child? a. 800 b. 1000 c. 1200 d. 1400 ANS: C For the first 10 kg of body weight, a child requires 100 ml/kg. For each additional kilogram of body weight, an extra 50 ml is needed. 10 kg 100 ml/kg/day = 1000 ml 4 kg 50 ml/kg/day = 200 ml 1000 ml + 200 ml = 1200 ml/day Eight hundred to 1000 ml is too little; 1400 ml is too much. 5. An infant is brought to the emergency department with the following clinical manifestations: poor skin turgor, weight loss, lethargy, tachycardia, and tachypnea. This is suggestive of which situation? a. Water excess b. Sodium excess c. Water depletion d. Potassium excess ANS: C These clinical manifestations indicate water depletion or dehydration. Edema and weight gain occur with water excess or overhydration. Sodium or potassium excess would not cause these symptoms. 6. Clinical manifestations of sodium excess (hypernatremia) include which signs or symptoms? a. Hyperreflexia b. Abdominal cramps c. Cardiac dysrhythmias d. Dry, sticky mucous membranes ANS: D Dry, sticky mucous membranes are associated with hypernatremia. Hyperreflexia is associated with hyperkalemia. Abdominal cramps, weakness, dizziness, nausea, and apprehension are associated hyponatremia. Cardiac dysrhythmias are associated with hypokalemia. 7. What laboratory finding should the nurse expect in a child with an excess of water? a. Decreased hematocrit b. High serum osmolality c. High urine specific gravity d. Increased blood urea nitrogen ANS: A The excess water in the circulatory system results in hemodilution. The laboratory results show a falsely decreased hematocrit. Laboratory analysis of blood that is hemodiluted reveals decreased serum osmolality and blood urea nitrogen. The urine specific gravity is variable relative to the childs ability to correct the fluid imbalance. 8. What clinical manifestation(s) is associated with calcium depletion (hypocalcemia)? a. Nausea, vomiting b. Weakness, fatigue c. Muscle hypotonicity d. Neuromuscular irritability ANS: D Neuromuscular irritability is a clinical manifestation of hypocalcemia. Nausea and vomiting occur with hypercalcemia and hypernatremia. Weakness, fatigue, and muscle hypotonicity are clinical manifestations of hypercalcemia. 9. What type of dehydration occurs when the electrolyte deficit exceeds the water deficit? a. Isotonic dehydration b. Hypotonic dehydration c. Hypertonic dehydration d. Hyperosmotic dehydration ANS: B Hypotonic dehydration occurs when the electrolyte deficit exceeds the water deficit, leaving the serum hypotonic. Isotonic dehydration occurs in conditions in which electrolyte and water deficits are present in balanced proportion. Hypertonic dehydration results from water loss in excess of electrolyte loss. This is the most dangerous type of dehydration. It is caused by feeding children fluids with high amounts of solute. Hyperosmotic dehydration is another term for hypertonic dehydration. 10. What amount of fluid loss occurs with moderate dehydration? a. 50 ml/kg b. 50 to 90 ml/kg c. 5% total body weight d. 15% total body weight ANS: B Moderate dehydration is defined as a fluid loss of between 50 and 90 ml/kg. Mild dehydration is defined as a fluid loss of less than 50 ml/kg. Weight loss up to 5% is considered mild dehydration. Weight loss over 15% is severe dehydration. 11. Physiologically, the child compensates for fluid volume losses by which mechanism? a. Inhibition of aldosterone secretion b. Hemoconcentration to reduce cardiac workload c. Fluid shift from interstitial space to intravascular space d. Vasodilation of peripheral arterioles to increase perfusion ANS: C Compensatory mechanisms attempt to maintain fluid volume. Initially, interstitial fluid moves into the intravascular compartment to maintain blood volume. Aldosterone is released to promote sodium retention and conserve water in the kidneys. Hemoconcentration results from the fluid volume loss. With less circulating volume, tachycardia results. Vasoconstriction of peripheral arterioles occurs to help maintain blood pressure. 12. Ongoing fluid losses can overwhelm the childs ability to compensate, resulting in shock. What early clinical sign precedes shock? a. Tachycardia b. Slow respirations c. Warm, flushed skin d. Decreased blood pressure ANS: A Shock is preceded by tachycardia and signs of poor tissue perfusion and decreased pulse oximetry values. Respirations are increased as the child attempts to compensate. As a result of the poor peripheral circulation, the child has skin that is cool and mottled with decreased capillary refilling after blanching. In children, lowered blood pressure is a late sign and may accompany the onset of cardiovascular collapse. 13. The presence of which pair of factors is a good predictor of a fluid deficit of at least 5% in an infant? a. Weight loss and decreased heart rate b. Capillary refill of less than 2 seconds and no tears c. Increased skin elasticity and sunken anterior fontanel d. Dry mucous membranes and generally ill appearance ANS: D A good predictor of a fluid deficit of at least 5% is any two four factors: capillary refill of more than 2 seconds, absent tears, dry mucous membranes, and ill general appearance. Weight loss is associated with fluid deficit, but the degree needs to be quantified. Heart rate is usually elevated. Skin elasticity is decreased, not increased. The anterior fontanel is depressed. 14. The nurse suspects fluid overload in an infant receiving intravenous fluids. What clinical manifestation is suggestive of water intoxication? a. Oliguria b. Weight loss c. Irritability and seizures d. Muscle weakness and cardiac dysrhythmias ANS: C Irritability, somnolence, headache, vomiting, diarrhea, and generalized seizures are manifestations of water intoxication. Urinary output is increased as the child attempts to maintain fluid balance. Weight gain is usually associated with water intoxication. Muscle weakness and cardiac dysrhythmias are not associated with water intoxication. 15. What physiologic state(s) produces the clinical manifestations of nervous system stimulation and excitement, such as overexcitability, nervousness, and tetany? a. Metabolic acidosis b. Respiratory alkalosis c. Metabolic and respiratory acidosis d. Metabolic and respiratory alkalosis ANS: D The major symptoms and signs of alkalosis include nervous system stimulation and excitement, including overexcitability, nervousness, tingling sensations, and tetany that may progress to seizures. Acidosis (both metabolic and respiratory) has clinical signs of depression of the central nervous system, such as lethargy, diminished mental capacity, delirium, stupor, and coma. Respiratory alkalosis has the same symptoms and signs as metabolic alkalosis. 16. What is an approximate method of estimating output for a child who is not toilet trained? a. Have parents estimate output. b. Weigh diapers after each void. c. Place a urine collection device on the child. d. Have the child sit on a potty chair 30 minutes after eating. ANS: B Weighing diapers will provide an estimate of urinary output. Each 1 g of weight is equivalent to 1 ml of urine. Having parents estimate output would be inaccurate. It is difficult to estimate how much fluid is in a diaper. The urine collection device would irritate the childs skin. It would be difficult for a toddler who is not toilet trained to sit on a potty chair 30 minutes after eating. 17. The nurse is selecting a site to begin an intravenous infusion on a 2-year-old child. The superficial veins on his hand and arm are not readily visible. What intervention should increase the visibility of these veins? a. Gently tap over the site. b. Apply a cold compress to the site. c. Raise the extremity above the level of the body. d. Use a rubber band as a tourniquet for 5 minutes. ANS: A Gently tapping the site can sometimes cause the veins to be more visible. This is done before the skin is prepared. Warm compresses (not cold) may be useful. The extremity is held in a dependent position. A tourniquet may be helpful, but if too tight, it could cause the vein to burst when punctured. Five minutes is too long. 18. When caring for a child with an intravenous (IV) infusion, what is an appropriate nursing action? a. Change the insertion site every 24 hours. b. Check the insertion site frequently for signs of infiltration. c. Use a macrodropper to facilitate reaching the prescribed flow rate. d. Avoid restraining the child to prevent undue emotional stress. ANS: B The nursing responsibility for IV therapy is to calculate the amount to be infused in a given length of time; set the infusion rate; and monitor the apparatus frequently, at least every 1 to 2 hours, to make certain that the desired rate is maintained, the integrity of the system remains intact, the site remains intact (free of redness, edema, infiltration, or irritation), and the infusion does not stop. Insertion sites do not need to be changed every 24 hours unless a problem is found with the site. This exposes the child to significant trauma. A minidropper (60 drops/ml) is the recommended IV tubing in pediatric patients. Intravenous sites should be protected. This may require soft restraints on the child. 19. The nurse determines that a childs intravenous infusion has infiltrated. The infused solution is a vesicant. What is the most appropriate nursing action? a. Stop the infusion and apply ice. b. End the infusion and notify the practitioner. c. Slow the infusion rate and notify the practitioner. d. Discontinue the infusion and apply warm compresses. ANS: B A vesicant causes cellular damage when even minute amounts escape into the tissue. The intravenous infusion is immediately stopped, the extremity is elevated, the practitioner is notified, and the treatment protocol is initiated. The applying of heat or ice depends on the fluid that has extravasated. The catheter is left in place until it is no longer needed. 20. Several types of long-term central venous access devices are used. What is a benefit of using an implanted port (e.g., Port-a-Cath)? a. You do not need to pierce the skin for access. b. It is easy to use for self-administered infusions. c. The patient does not need to limit regular physical activity, including swimming. d. The catheter cannot dislodge from the port even if the child plays with the port site. ANS: C No limitations on physical activity are needed. The child is able to participate in all regular physical activities, including bathing, showering, and swimming. The skin over the device is pierced with a Huber needle to access. Long-term central venous access devices are difficult to use for self-administration. The port is placed under the skin. If the child manipulates the device and plays with the actual port, the catheter can be dislodged. 21. The nurse is teaching the family of a child with a long-term central venous access device about signs and symptoms of bacteremia. What finding indicates the presence of bacteremia? a. Hypertension b. Pain at the entry site c. Fever and general malaise d. Redness and swelling at the entry site ANS: C Fever, chills, general malaise, and an ill appearance can be signs of bacteremia and require immediate intervention. Hypotension would be indicative of sepsis and possible impending cardiovascular collapse. Pain, redness, and swelling at the entry site indicate local infection. 22. What flush solution is recommended for intravenous catheters larger than 24 gauge? a. Saline b. Heparin c. Alteplase d. Heparin and saline combination ANS: A The recommended solution for flushing venous access devices is saline. The turbulent flow flush with saline is effective for catheters larger than 24 gauge. The use of heparin does not increase the longevity of the venous access device. In 24-gauge catheters, heparin may offer an advantage. Alteplase is used for treating catheter- related occlusions in children. The heparin and saline combination does not offer any advantage over saline or heparin individually. 23. The nurse is teaching a parent of a 10-year-old child who will be discharged with a venous access device (VAD). What statement by the parent indicates a correct understanding of the teaching? a. I should have my child wear a protective vest when my child wants to participate in contact sports. b. I should apply pressure to the entry site to the vein, not the exit site, if the VAD is accidentally removed. c. I can expect my child to have feelings of general malaise for 1 week after the VAD is inserted. d. I should give my child a sponge bath for the first 2 weeks after the VAD is inserted; then I can allow my child to take a bath. ANS: B The parents of a child with a VAD should be taught to apply pressure to the entry site to the vein, not the exit site, if the VAD is accidentally removed. The child should not participate in contact sports, even with a protective vest, to prevent the VAD from becoming dislodged. General malaise is a sign of an infection, not an expected finding after insertion of the VAD. The child can shower or take a bath after insertion of the VAD; the child does not need a sponge bath for any length of time. 24. What type of diarrhea is associated with an inflammation of the mucosa and submucosa in the ileum and colon caused by infectious agents? a. Osmotic b. Secretory c. Cytotoxic d. Dysenteric ANS: D Dysenteric diarrhea is associated with an inflammation of the mucosa and submucosa in the ileum and colon caused by infectious agents such as Campylobacter, Salmonella, or Shigella organisms. Edema, mucosal bleeding, and leukocyte infiltration occur. Osmotic diarrhea occurs when the intestine cannot absorb nutrients or electrolytes. It is commonly seen in malabsorption syndromes such as lactose intolerance. Secretory diarrhea is usually a result of bacterial enterotoxins that stimulate fluid and electrolyte secretion from the mucosal crypt cells, the principal secretory cells of the small intestine. Cytotoxic diarrhea is characterized by the viral destruction of the villi of the small intestine. This results in a smaller intestinal surface area, with a decreased capacity for fluid and electrolyte absorption. 25. What condition is often associated with severe diarrhea? a. Metabolic acidosis b. Metabolic alkalosis c. Respiratory acidosis d. Respiratory alkalosis ANS: A Metabolic acidosis results from the increased absorption of short-chain fatty acids produced in the colon. There is an increase in lactic acid from tissue hypoxia secondary to hypovolemia. Bicarbonate is lost through the stool. Ketosis results from fat metabolism when glycogen stores are depleted. Metabolic alkalosis and respiratory alkalosis do not occur from severe diarrhea. 26. What organism is a parasite that causes acute diarrhea? a. Shigella organisms b. Salmonella organisms c. Giardia lamblia d. Escherichia coli ANS: C G. lamblia is a parasite that represents 10% of nondysenteric illness in the United States. Shigella, Salmonella, and E. coli are bacterial pathogens. 27. A school-age child with diarrhea has been rehydrated. The nurse is discussing the childs diet with the family. What food or beverage should be tolerated best? a. Clear fluids b. Carbonated drinks c. Applesauce and milk d. Easily digested foods ANS: D Easily digested foods such as cereals, cooked vegetables, and meats should be provided for the child. Early reintroduction of nutrients is desirable. Continued feeding or reintroduction of a regular diet has no adverse effects and actually lessens the severity and duration of the illness. Clear fluids (e.g., fruit juices and gelatin) and carbonated drinks have high carbohydrate content and few electrolytes. Caffeinated beverages should be avoided because caffeine is a mild diuretic. In some children, lactose intolerance will develop with diarrhea, and cows milk should be avoided in the recovery stage. 28. A school-age child with acute diarrhea and mild dehydration is being given oral rehydration solutions (ORS). The childs mother calls the clinic nurse because he is also occasionally vomiting. The nurse should recommend which intervention? a. Bring the child to the hospital for intravenous fluids. b. Alternate giving ORS and carbonated drinks. c. Continue to give ORS frequently in small amounts. d. Keep child NPO (nothing by mouth) for 8 hours and resume ORS if vomiting has subsided. ANS: C Children who are vomiting should be given ORS at frequent intervals and in small amounts. Intravenous fluids are not indicated for mild dehydration. Carbonated beverages are high in carbohydrates and are not recommended for the treatment of diarrhea and vomiting. The child is not kept NPO because this would cause additional fluid losses. 29. A 7-year-old child with acute diarrhea has been rehydrated with oral rehydration solution (ORS). The nurse should recommend that the childs diet be advanced to what kind of diet? a. Regular diet b. Clear liquids c. High carbohydrate diet d. BRAT (bananas, rice, applesauce, and toast or tea) diet ANS: A It is appropriate to advance to a regular diet after ORS has been used to rehydrate the child. Clear liquids are not appropriate for hydration or afterward. A high carbohydrate diet may contribute to loose stools because of the low electrolyte content and high osmolality. The BRAT diet has little nutritional value and is high in carbohydrates. 30. What is the most frequent cause of hypovolemic shock in children? a. Sepsis b. Blood loss c. Anaphylaxis d. Heart failure ANS: B Blood loss is the most frequent cause of hypovolemic shock in children. Sepsis causes septic shock, which is overwhelming sepsis and circulating bacterial toxins. Anaphylactic shock results from extreme allergy or hypersensitivity to a foreign substance. Heart failure contributes to hypervolemia, not hypovolemia. 31. What type of shock is characterized by a hypersensitivity reaction causing massive vasodilation and capillary leaks, which may occur with drug or latex allergy? a. Neurogenic shock b. Cardiogenic shock c. Hypovolemic shock d. Anaphylactic shock ANS: D Anaphylactic shock results from extreme allergy or hypersensitivity to a foreign substance. Neurogenic shock results from loss of neuronal control, such as the interruption of neuronal transmission after a spinal cord injury. Cardiogenic shock is decreased cardiac output. Hypovolemic shock is a reduction in the size of the vascular compartment, decreasing blood pressure, and low central venous pressure. 32. What clinical manifestation(s) should the nurse expect to see as shock progresses in a child and becomes decompensated shock? a. Thirst b. Irritability c. Apprehension d. Confusion and somnolence ANS: D Confusion and somnolence are beginning signs of decompensated shock. Thirst, irritability, and apprehension are signs of compensated shock. 33. The nurse suspects shock in a child 1 day after surgery. What should be the initial nursing action? a. Place the child on a cardiac monitor. b. Obtain arterial blood gases. c. Provide supplemental oxygen. d. Put the child in the Trendelenburg position. ANS: C The initial nursing action for a patient in shock is to establish ventilatory support. Oxygen is provided, and the nurse carefully observes for signs of respiratory failure, which indicates a need for intubation. Cardiac monitoring would be indicated to assess the childs status further, but ventilatory support comes first. Oxygen saturation monitoring should be begun. Arterial blood gases would be indicated if alternative methods of monitoring oxygen therapy were not available. The Trendelenburg position is not indicated and is detrimental to the child. The head-down position increases intracranial pressure and decreases diaphragmatic excursion and lung volume. 34. What explains physiologically the edema formation that occurs with burns? a. Vasoconstriction b. Reduced capillary permeability c. Increased capillary permeability d. Diminished hydrostatic pressure within capillaries ANS: C With a major burn, capillary permeability increases, allowing plasma proteins, fluids, and electrolytes to be lost into the interstitial space, causing edema. Maximum edema in a small wound occurs about 8 to 12 hours after injury. In larger injuries, the maximum edema may not occur until 18 to 24 hours later. Vasodilation occurs, causing an increase in hydrostatic pressure. 35. What is a systemic response to severe burns in a child? a. Metabolic alkalosis b. Decreased metabolic rate c. Increased renal plasma flow d. Abrupt drop in cardiac output ANS: D The initial physiologic response to a burn injury is a dramatic change in circulation. A precipitous drop in cardiac output precedes any change in circulating blood or plasma volumes. A circulating myocardial depressant factor associated with severe burn injury is thought to be the cause. Metabolic acidosis usually occurs secondary to the disruption of the bodys buffering action resulting from fluid shifting to extravascular space. There is a greatly accelerated metabolic rate in burn patients, supported by protein and lipid breakdown. With the loss of circulating volume, there is decreased renal blood flow and depressed glomerular filtration. 36. A child is admitted with extensive burns. The nurse notes burns on the childs lips and singed nasal hairs. The nurse should suspect what condition in the child? a. A chemical burn b. A hot-water scald c. An electrical burn d. An inhalation injury ANS: D Evidence of an inhalation injury includes burns of the face and lips, singed nasal hairs, and laryngeal edema. Clinical manifestations may be delayed for up to 24 hours. Chemical burns, electrical burns, and burns associated with hot-water scalds would not produce singed nasal hair. 37. What is the most immediate threat to life in children with thermal injuries? a. Shock b. Anemia c. Local infection d. Systemic sepsis ANS: A The immediate threat to life in children with thermal injuries is airway compromise and profound shock. Anemia is not of immediate concern. During the healing phase, local infection or sepsis is the primary complication. 38. After the acute stage and during the healing process, what is the primary complication from burn injury? a. Shock b. Asphyxia c. Infection d. Renal shutdown ANS: C During the healing phase, local infection or sepsis is the primary complication. Respiratory problems, primarily airway compromise, and shock are the primary complications during the acute stage of burn injury. Renal shutdown is not a complication of the burn injury but may be a result of the profound shock. 39. What sign is one of the first to indicate overwhelming sepsis in a child with burn injuries? a. Seizures b. Bradycardia c. Disorientation d. Decreased blood pressure ANS: C Disorientation in the burn patient is one of the first signs of overwhelming sepsis and may indicate inadequate hydration. Seizures, bradycardia, and decreased blood pressure are not initial manifestations of overwhelming sepsis. 40. A toddler sustains a minor burn on the hand from hot coffee. What is the first action in treating this burn? a. Apply burn ointment. b. Put ice on the burned area. c. Cover the hand with gauze dressing. d. Hold the hand under cool running water. ANS: D In minor burns, the best method to stop the burning process is to hold the burned area under cool running water. Ointments are not applied to a new burn; the ointment will contribute to the burning. Ice is not recommended. Gauze dressings do not stop the burning process. 41. What finding is the most reliable guide to the adequacy of fluid replacement for a small child with burns? a. Absence of thirst b. Falling hematocrit c. Increased seepage from burn wound d. Urinary output of 1 to 2 ml/kg of body weight/hr ANS: D Replacement fluid therapy is delivered to provide a urinary output of 30 ml/hr in older children or 1 to 2 ml/kg of body weight/hr for children weighing less than 30 kg (66 lb). Thirst is the result of a complex set of interactions and is not a reliable indicator of hydration. Thirst occurs late in dehydration. A falling hematocrit would be indicative of hemodilution. This may reflect fluid shifts and may not accurately represent fluid replacement therapy. Increased seepage from a burn wound would be indicative of increased output, not adequate hydration. diphenhydramine (Benadryl), 1 mg/kg PO every 4 to 6 hours as needed for pruritus to a child with a mild cutaneous anaphylactic reaction. The child weighs 5 kg. The medication label states: Diphenhydramine 12.5 mg/5 ml. The nurse prepares to administer one dose. How many milliliters will the nurse prepare to administer one dose? Fill in the blank. Record your answer in a whole number. ANS: 2 ml 3. A health care provider prescribes nitroprusside (Nipride), 1 mcg/kg/min in a continuous intravenous (IV) infusion for a child in shock. The child weighs 20 kg. The medication is available as nitroprusside 50 mg in 250 ml. The nurse prepares to calculate the rate. How many milliliters per hour will the nurse set the IV infusion pump to deliver 1 mcg/kg/min? Fill in the blank. Record your answer in a whole number. ANS: 6 ml/hr 4. A health care provider prescribes midazolam (Versed) syrup 0.5 mg/kg per mouth (PO) 30 minutes before a burn wound dressing change on a child. The medication label states: Versed 2 mg/1 ml. The child weighs 8 kg. The nurse prepares to administer the dose. How many milliliters will the nurse prepare to administer the dose? Fill in the blank. Record your answer in a whole number. ANS: 2 ml MATCHING Match the type of skin graft to its definition. a. Allografts- Skin that is obtained from genetically different members of the same species who are free of disease b. Xenografts- Skin that is obtained from members of a different species, primarily pigskin c. Autografts- Tissue obtained from undamaged areas of the patients own body d. Isografts- Histocompatible tissue obtained from genetically identical individuals 1. Tissue obtained from undamaged areas of the patients own body- c. Autografts 2. Histocompatible tissue obtained from genetically identical individuals- d. Isografts 3. Skin that is obtained from genetically different members of the same species who are free of disease- a. Allografts 4. Skin that is obtained from members of a different species, primarily pigskin- b. Xenografts Chapter 24: The Child with Renal Dysfunction MULTIPLE CHOICE 1. Urinary tract anomalies are frequently associated with what irregularities in fetal development? a. Myelomeningocele b. Cardiovascular anomalies c. Malformed or low-set ears d. Defects in lower extremities ANS: C Although unexplained, there is a frequent association between malformed or low-set ears and urinary tract anomalies. During the newborn examination, the nurse should have a high suspicion about urinary tract structure and function if ear anomalies are present. Children who have myelomeningocele may have impaired urinary tract function secondary to the neural defect. When other congenital defects are present, there is an increased likelihood of other issues with other body systems. Cardiac and extremity defects do not have a strong association with renal anomalies. 2. What urine test result is considered abnormal? a. pH 4.0 b. WBC 1 or 2 cells/ml c. Protein level absent d. Specific gravity 1.020 ANS: A The expected pH ranges from 4.8 to 7.8. A pH of 4.0 can be indicative of urinary tract infection or metabolic alkalosis or acidosis. Less than 1 or 2 white blood cells per milliliter is the expected range. The absence of protein is expected. The presence of protein can be indicative of glomerular disease. A specific gravity of 1.020 is within the anticipated range of 1.001 to 1.030. Specific gravity reflects level of hydration in addition to renal disorders and hormonal control such as antidiuretic hormone. 3. What diagnostic test allows visualization of renal parenchyma and renal pelvis without exposure to external-beam radiation or radioactive isotopes? a. Renal ultrasonography b. Computed tomography c. Intravenous pyelography d. Voiding cystourethrography ANS: A The transmission of ultrasonic waves through the renal parenchyma allows visualization of the renal parenchyma and renal pelvis without exposure to external- beam radiation or radioactive isotopes. Computed tomography uses external radiation, and sometimes contrast media are used. Intravenous pyelography uses contrast medium and external radiation for radiography. Contrast medium is injected into the bladder through the urethral opening. External radiation for radiography is used before, during, and after voiding in voiding cystourethrography. 4. What name is given to inflammation of the bladder? a. Cystitis b. Urethritis c. Urosepsis d. Bacteriuria ANS: A Cystitis is an inflammation of the bladder. Urethritis is an inflammation of the urethra. Urosepsis is a febrile urinary tract infection with systemic signs of bacterial infection. Bacteriuria is the presence of bacteria in the urine. 5. The nurse is teaching a client to prevent future urinary tract infections (UTIs). What factor is most important to emphasize as the potential cause? a. Poor hygiene b. Constipation c. Urinary stasis d. Congenital anomalies ANS: C Urinary stasis is the single most important host factor that influences the development of UTIs. Urine is usually sterile but at body temperature provides b. Detect evidence of edema. c. Minimize risk of infection. d. Promote adherence to the antibiotic regimen. ANS: C High-dose steroid therapy has an immunosuppressant effect. These children are particularly vulnerable to upper respiratory tract infections. A priority nursing goal is to minimize the risk of infection by protecting the child from contact with infectious individuals. Appetite is increased with prednisone therapy. The amount of edema should be monitored as part of the disease process, not necessarily related to the administration of prednisone. Antibiotics would not be used as prophylaxis. 16. The nurse is teaching a child experiencing severe edema associated with minimal change nephrotic syndrome about his diet. The nurse should discuss what dietary need? a. Consuming a regular diet b. Increasing protein c. Restricting fluids d. Decreasing calories ANS: C During the edematous stage of active nephrosis, the child has restricted fluid and sodium intake. As the edema subsides, the child is placed on a diet with increased salt and fluids. A regular diet is not indicated. There is no evidence that a diet high in protein is beneficial or has an effect on the course of the disease. Calories sufficient for growth and tissue healing are essential. With the child having little appetite and the fluid and salt restrictions, achieving adequate nutrition is difficult. 17. A child is admitted for minimal change nephrotic syndrome (MCNS). The nurse recognizes that the childs prognosis is related to what factor? a. Admission blood pressure b. Creatinine clearance c. Amount of protein in urine d. Response to steroid therapy ANS: D Corticosteroids are the drugs of choice for MCNS. If the child has not responded to therapy within 28 days of daily steroid administration, the likelihood of subsequent response decreases. Blood pressure is normal or low in MCNS. It is not correlated with prognosis. Creatinine clearance is not correlated with prognosis. The presence of significant proteinuria is used for diagnosis. It is not predictive of prognosis. 18. A 12-year-old child is injured in a bicycle accident. When considering the possibility of renal trauma, the nurse should consider what factor? a. Flank pain rarely occurs in children with renal injuries. b. Few nonpenetrating injuries cause renal trauma in children. c. Kidneys are immobile, well protected, and rarely injured in children. d. The amount of hematuria is not a reliable indicator of the seriousness of renal injury. ANS: D Hematuria is consistently present with renal trauma. It does not provide a reliable indicator of the seriousness of the renal injury. Flank pain results from bleeding around the kidney. Most injuries that cause renal trauma in children are of the nonpenetrating or blunt type and usually involve falls, athletic injuries, and motor vehicle accidents. In children, the kidneys are more mobile, and the outer borders are less protected than in adults. 19. What condition is the most common cause of acute renal failure in children? a. Pyelonephritis b. Tubular destruction c. Severe dehydration d. Upper tract obstruction ANS: C The most common cause of acute renal failure in children is dehydration or other causes of poor perfusion that may respond to restoration of fluid volume. Pyelonephritis and tubular destruction are not common causes of acute renal failure. Obstructive uropathy may cause acute renal failure, but it is not the most common cause. 20. A child is admitted in acute renal failure (ARF). Therapeutic management to rapidly provoke a flow of urine includes the administration of what medication? a. Propranolol (Inderal) b. Calcium gluconate c. Mannitol (Osmitrol) or furosemide (Lasix) (or both) d. Sodium, chloride, and potassium ANS: C In ARF, if hydration is adequate, mannitol or furosemide (or both) is administered to provoke a flow of urine. If glomerular function is intact, an osmotic diuresis will occur. Propranolol is a beta-blocker; it will not produce a rapid flow of urine in ARF. Calcium gluconate is administered for its protective cardiac effect when hyperkalemia exists. It does not affect diuresis. Electrolyte measurements must be done before administration of sodium, chloride, or potassium. These substances are not given unless there are other large, ongoing losses. In the absence of urine production, potassium levels may be elevated, and additional potassium can cause cardiac dysrhythmias. 21. What major complication is associated with a child with chronic renal failure? a. Hypokalemia b. Metabolic alkalosis c. Water and sodium retention d. Excessive excretion of blood urea nitrogen ANS: C Chronic renal failure leads to water and sodium retention, which contributes to edema and vascular congestion. Hyperkalemia, metabolic acidosis, and retention of blood urea nitrogen are complications of chronic renal failure. 22. What diet is most appropriate for the child with chronic renal failure (CRF)? a. Low in protein b. Low in vitamin D c. Low in phosphorus d. Supplemented with vitamins A, E, and K ANS: C Dietary phosphorus may need to be restricted by limiting protein and milk intake. Substances that bind phosphorus are given with meals to prevent its absorption, which enables a more liberal intake of phosphorus-containing protein. Protein is limited to the recommended daily allowance for the childs age. Further restriction is thought to negatively affect growth and neurodevelopment. Vitamin D therapy is administered in children with CRF to increase calcium absorption. Supplementation of vitamins A, E, and K, beyond normal dietary intake, is not advised in children with CRF. These fat-soluble vitamins can accumulate. 23. What nursing consideration is most important when caring for a child with end-stage renal disease (ESRD)? a. Children with ESRD usually adapt well to minor inconveniences of treatment. b. Children with ESRD require extensive support until they outgrow the condition. c. Multiple stresses are placed on children with ESRD and their families until the illness is cured. d. Multiple stresses are placed on children with ESRD and their families because childrens lives are maintained by drugs and artificial means. ANS: D Stressors on the family are often overwhelming because of the progressive deterioration. The child progresses from renal insufficiency to uremia to dialysis and transplantation, each of which requires intensive therapy and supportive care. The treatment of ESRD is intense and requires multiple examinations, dietary restrictions, and medications. Adherence to the regimen is often difficult for children and families because of the progressive nature of the renal failure. ESRD has an unrelenting course that has no known cure. Children do not outgrow the renal failure. 24. The nurse is caring for an adolescent who has just started dialysis. The child always seems angry, hostile, or depressed. The nurse should recognize that this is most likely related to what underlying cause? a. Physiologic manifestations of renal disease b. The fact that adolescents have few coping mechanisms c. Neurologic manifestations that occur with dialysis d. Resentment of the control and enforced dependence imposed by dialysis ANS: D Older children and adolescents need to feel in control. Dialysis forces the adolescent into a dependent relationship, which results in these behaviors. Being angry, hostile, or depressed are functions of the age of the child, not neurologic or physiologic manifestations of the dialysis. 25. What statement is an advantage of peritoneal dialysis compared with hemodialysis? a. Protein loss is less extensive. b. Dietary limitations are not necessary. c. It is easy to learn and safe to perform. d. It is needed less frequently than hemodialysis. ANS: C Peritoneal dialysis is the preferred form of dialysis for parents, infants, and children who wish to remain independent. Parents and older children can perform the treatments themselves. Protein loss is not significantly different. The dietary limitations are necessary, but they are not as stringent as those for hemodialysis. Treatments are needed more frequently but can be done at home. 26. What statement is descriptive of renal transplantation in children? a. It is an acceptable means of treatment after age 10 years. b. Children can receive kidneys only from other children. c. It is the preferred means of renal replacement therapy in children. d. The decision for transplantation is difficult because a relatively normal lifestyle is not possible. ANS: C Renal transplantation offers the opportunity for a relatively normal life and is the preferred means of renal replacement therapy in end-stage renal disease. It can be done in children as young as age 6 months. Both children and adults can serve as donors for renal transplant purposes. Renal transplantation affords the child a more normal lifestyle than dependence on dialysis. 27. The nurse is conducting discharge teaching with the parent of a 7-year-old child with minimal change nephrotic syndrome (MCNS). What statement by the parent indicates a correct understanding of the teaching? a. My child needs to stay home from school for at least 1 more month. b. I should not add additional salt to any of my childs meals. c. My child will not be able to participate in contact sports while receiving corticosteroid therapy. d. I should measure my childs urine after each void and report the 24-hour amount to the health care provider. ANS: B Children with MCNS can be treated at home after the initial phase with appropriate discharge instructions, including a salt restriction of no additional salt to the childs meals. The child may return to school but should avoid exposure to infected playmates. Participation in contact sports is not affected by corticosteroid therapy. The parent does not need to measure the childs urine on a daily basis but may be instructed to test for albumin. 28. What is the narrowing of preputial opening of foreskin called? a. Chordee b. Phimosis c. Epispadias d. Hypospadias ANS: B Phimosis is the narrowing or stenosis of the preputial opening of the foreskin. Chordee is the ventral curvature of the penis. Epispadias is the meatal opening on the dorsal surface of the penis. Hypospadias is a congenital condition in which the urethral opening is located anywhere along the ventral surface of the penis. 29. Identification and treatment of cryptorchid testes should be done by age 2 years. What is an important consideration? a. Medical therapy is not effective after this age. b. Treatment is necessary to maintain the ability to be fertile when older. c. The younger child can tolerate the extensive surgery needed. d. Sexual reassignment may be necessary if treatment is not successful. ANS: B The longer the testis is exposed to higher body heat, the greater the likelihood of damage. To preserve fertility, surgery should be done at an early age. Surgical intervention is the treatment of choice. Simple orchiopexy is usually performed as an outpatient procedure. The surgical procedure restores the testes to the scrotum. This helps the boy to have both testes in the scrotum by school age. Sexual reassignment is not indicated when the testes are not descended. 30. Congenital defects of the genitourinary tract, such as hypospadias, are usually repaired as early as possible to accomplish what? a. Minimize separation anxiety. b. Prevent urinary complications. c. Increase acceptance of hospitalization. d. Promote development of normal body image. ANS: D Promoting development of normal body image is extremely important. Surgery involving sexual organs can be upsetting to children, especially preschoolers, who fear mutilation and castration. Proper preprocedure preparation can facilitate coping with these issues. Preventing urinary complications is important for defects that affect function, but for all external defects, repair should be done as soon as possible. 31. The parents of a 2-year-old boy who had a repair of exstrophy of the bladder at birth ask when they can begin toilet training their son. The nurse replies based on what knowledge? a. Most boys in the United States can be toilet trained at age 3 years. b. Training can begin when he has sufficient bladder capacity. c. Additional surgery may be necessary to achieve continence. d. They should begin now because he will require additional time. ANS: C After repair of the bladder exstrophy, the childs bladder is allowed to increase capacity. Several surgical procedures may be necessary to create a urethral sphincter mechanism to aid in urination and ejaculation. With the lack of a urinary sphincter, toilet training is unlikely. The child cannot hold the urine in the bladder. Bladder capacity is one component of continence. A functional sphincter is also needed. 32. An infant has been diagnosed with bladder obstruction. What do symptoms of this disorder include? a. Renal colic b. Strong urinary stream c. Urinary tract infections d. Posturination dribbling ANS: D Symptoms of bladder obstruction include poor force of urinary stream, intermittency of voided stream, feelings of incomplete bladder emptying, and posturination dribbling. They may also include urinary frequency, nocturia, nocturnal enuresis, and urgency. Renal colic is a symptom of upper urinary tract obstruction. Children with bladder obstruction have a weak urinary stream. Urinary tract infections are not associated with bladder obstruction. 33. The parents of a child born with ambiguous genitalia tell the nurse that family and friends are asking what caused the baby to be this way. Tests are being done to assist in gender assignment. What should the nurses intervention include? a. Explain the disorder so they can explain it to others. b. Help parents understand that this is a minor problem. c. Suggest that parents avoid family and friends until the gender is assigned. d. Encourage parents not to worry while the tests are being done. ANS: A Explaining the disorder to parents so they can explain it to others is the most therapeutic approach while the parents await the gender assignment of their child. Ambiguous genitalia is a serious issue for the family. Careful testing and evaluation are necessary to aid in gender assignment to avoid lifelong problems for the child. Suggesting that parents avoid family and friends until the gender is assigned is impractical and would isolate the family from their support system while awaiting test results. The parents will be concerned. Telling them not to worry without giving them specific alternative actions would not be effective. 34. Parents of a newborn with ambiguous genitalia want to know how long they will have to wait to know whether they have a boy or a girl. The nurse answers the parents based on what knowledge? a. Chromosome analysis will be complete in 7 days. b. A physical examination will be able to provide a definitive answer. c. Additional laboratory testing is necessary to assign the correct gender. d. Gender assignment involves collaboration between the parents and a multidisciplinary team. ANS: D Gender assignment is a complex decision-making process. Endocrine, genetic, social, psychologic, and ethical elements of sex assignment have been integrated into the process. Parent participation is included. The goal is to enable the affected child to grow into a well-adjusted, psychosocially stable person. Chromosome analysis usually takes 2 or 3 days. A physical examination reveals ambiguous genitalia, but additional testing is necessary. A correct gender may not be identifiable. 35. Surgery is performed on a child to correct cryptorchidism. The parents understand the reason for the surgery if they tell the nurse this was done to do what? a. Prevent damage to the undescended testicle. b. Prevent urinary tract infections. c. Prevent prostate cancer. d. Prevent an inguinal hernia. ANS: A If the testes do not descend spontaneously, orchiopexy is performed before the childs second birthday, preferably between 1 and 2 years of age. Surgical repair is done to (1) prevent damage to the undescended testicle by exposure to the higher degree of body heat in the undescended location, thus maintaining future fertility; (2) decrease the incidence of malignancy formation, which is higher in undescended testicles; (3) avoid trauma and torsion; (4) close the processus vaginalis; and (5) prevent the cosmetic and psychologic disability of an empty scrotum. Parents understand the teaching if they respond the surgery is done to prevent damage. 36. What is an appropriate nursing intervention for a child with minimal change nephrotic syndrome (MCNS) who has scrotal edema? a. Place an ice pack on the scrotal area. b. Place the child in an upright sitting position. c. Elevate the scrotum with a rolled washcloth. d. Place a warm moist pack to the scrotal area. ANS: C In children hospitalized with MCNS, elevating edematous parts may be helpful to shift fluid to more comfortable distributions. Areas that are particularly edematous, such as the scrotum, abdomen, and legs, may require support. The scrotum can be elevated with a rolled washcloth. Ice or heat should not be used. Sitting the child in an upright position will not decrease the scrotal edema. 37. What do the clinical manifestations of minimal change nephrotic syndrome include? a. Hematuria, bacteriuria, and weight gain b. Gross hematuria, albuminuria, and fever c. Hypertension, weight loss, and proteinuria d. Massive proteinuria, hypoalbuminemia, and edema ANS: D Massive proteinuria, hypoalbuminemia, and edema are clinical manifestations of minimal change nephrotic syndrome. Hematuria and bacteriuria are not seen, and there is usually weight loss, not gain. The blood pressure is normal or hypotensive. 38. For minimal change nephrotic syndrome (MCNS), prednisone is effective when what occurs? a. Appetite increases and blood pressure is normal b. Urinary tract infection is gone and edema subsides c. Generalized edema subsides and blood pressure is normal d. Diuresis occurs as urinary protein excretion diminishes ANS: D Studies suggest that the duration of steroid treatment for the initial episode should be at least 3 months. In most patients, diuresis occurs as the urinary protein excretion diminishes within 7 to 21 days after the initiation of steroid therapy. The blood pressure is normal with MCNS, so remaining so is not an improvement. There is no urinary tract infection with MCNS. 39. A nurse is evaluating the effectiveness of teaching regarding care of a child with minimal change nephrotic syndrome (MCNS) that is in remission after administration of prednisone. The nurse realizes further teaching is required if the parents state what? a. We will keep our child away from anyone who is ill. b. We will be sure to administer the prednisone as ordered. c. We will encourage our child to eat a balanced diet, but we will watch his salt intake. d. We understand our child will not be able to attend school, so we will arrange for home schooling. ANS: D The child with MCNS in remission can attend school. The child needs socialization and will be socially isolated if home schooled. The other statements are accurate for home care for a child with MCNS. 40. A parent asks the nurse what would be the first indication that acute glomerulonephritis was improving. What would be the nurses best response? a. Blood pressure will stabilize. b. Your child will have more energy. c. Urine will be free of protein. d. Urine output will increase. ANS: D The first sign of improvement in acute glomerulonephritis is an increase in urinary output with a corresponding decrease in body weight. With diuresis, the child begins to feel better, the appetite improves, and the blood pressure decreases to normal with the reduction of edema. Gross hematuria diminishes, in part because of dilution of the red blood cells in the more dilute urine. Renal function and hypocomplementemia usually normalize by 8 weeks. 41. A child is admitted with acute glomerulonephritis. What should the nurse expect the urinalysis during this acute phase to show? a. Bacteriuria and hematuria b. Hematuria and proteinuria c. Bacteriuria and increased specific gravity d. Proteinuria and decreased specific gravity ANS: B Urinalysis during the acute phase characteristically shows hematuria, proteinuria, and increased specific gravity. Proteinuria generally parallels the hematuria but is not usually the massive proteinuria seen in nephrotic syndrome. Gross discoloration of urine reflects its red blood cell and hemoglobin content. Microscopic examination of the sediment shows many red blood cells, leukocytes, epithelial cells, and granular and red blood cell casts. Bacteria are not seen, and urine culture results are negative. 42. A child with acute glomerulonephritis is in the playroom and experiences blurred vision and a headache. What action should the nurse take? a. Check the urine to see if hematuria has increased. b. Obtain the childs blood pressure and notify the health care provider. c. Obtain serum electrolytes and send urinalysis to the laboratory. d. Reassure the child and encourage bed rest until the headache improves. ANS: B The premonitory signs of encephalopathy are headache, dizziness, abdominal discomfort, and vomiting. If the condition progresses, there may be transient loss of vision or hemiparesis, disorientation, and generalized tonic-clonic seizures. The health care provider should be notified of these symptoms. 43. The nurse is preparing to admit a child to the hospital with a diagnosis of acute poststreptococcal glomerulonephritis. The nurse understands that the peak age at onset for this disease is what? a. 2 to 4 years b. 5 to 7 years c. 8 to 10 years d. 11 to 13 years ANS: B The peak age at onset for acute poststreptococcal glomerulonephritis is 5 to 7 years of age. 44. The nurse is preparing to admit a child to the hospital with a diagnosis of minimal change nephrotic syndrome. The nurse understands that the peak age at onset for this disease is what? a. 2 to 3 years b. 4 to 5 years c. 6 to 7 years d. 8 to 9 years ANS: A The peak age at onset for minimal change nephrotic syndrome is 2 to 3 years of age. MULTIPLE RESPONSE 1. The nurse is admitting a 9-year-old child with hemolytic uremic syndrome. What clinical manifestations should the nurse expect to observe? (Select all that apply.) a. Hematuria b. Anorexia c. Hypertension d. Purpura e. Proteinuria f. Periorbital edema ANS: B, C, D Clinical manifestations of hemolytic uremic syndrome include anorexia; hypertension; and purpura, which persists for several days to 2 weeks. Gross hematuria is seen in acute glomerulonephritis. Substantial proteinuria and periorbital edema are common manifestations in nephrotic syndrome. 2. The nurse is caring for a child with a urinary tract infection who is on intravenous gentamicin (Garamycin). What interventions should the nurse plan for this child with regard to this medication? (Select all that apply.) a. Encourage fluids. b. Monitor urinary output. c. Monitor sodium serum levels. d. Monitor potassium serum levels. e. Monitor serum peak and trough levels. ANS: A, B, E Garamycin can cause renal toxicity and ototoxicity. Fluids should be encouraged and urinary output and serum peak and trough levels monitored. It is not necessary to monitor potassium sodium levels for patients taking this medication. 3. The nurse is caring for a child with a urinary tract infection who is on trimethoprimsulfamethoxazole (Bactrim). What side effects of this medication should the nurse teach to the parents and the child? (Select all that apply.) a. Rash b. Urticaria c. Pneumonitis d. Renal toxicity e. Photosensitivity ANS: A, B, E Side effects of Bactrim are rash, urticaria, and photosensitivity. Pneumonitis and renal toxicity are not side effects of Bactrim. 4. The nurse is caring for a child with acute renal failure. What laboratory findings should the nurse expect to find? (Select all that apply.) a. Hyponatremia b. Hyperkalemia c. Metabolic alkalosis d. Elevated blood urea nitrogen level e. Decreased plasma creatinine level ANS: A, B, D A child with acute renal failure would have hyponatremia, hyperkalemia, and elevated blood urea nitrogen levels. The child would have metabolic acidosis, not alkalosis, and the plasma creatinine levels would be increased, not decreased. 5. What signs and symptoms are indicative of a urinary tract disorder in the neonatal period (birth to 1 month)? (Select all that apply.) a. Edema b. Bradypnea c. Frequent urination d. Poor urinary stream e. Failure to gain weight ANS: C, D, E Signs and symptoms of a urinary tract disorder in the neonatal period are frequent urination, poor urinary stream, and failure to gain weight. The respirations would be rapid, not slow, and dehydration, not edema, occurs. 6. What signs and symptoms are indicative of a urinary tract disorder in the infancy period (124 months)? (Select all that apply.) a. Pallor b. Poor feeding c. Hypothermia d. Excessive thirst e. Frequent urination ANS: A, B, D, E Signs and symptoms of a urinary tract disorder in the infancy period are pallor, poor feeding, excessive thirst, and frequent urination. Hyperthermia is seen, not hypothermia. 7. What signs and symptoms are indicative of a urinary tract disorder in the childhood period (2 to 14 years)? (Select all that apply.) a. Fatigue b. Dehydration c. Hypotension d. Growth failure e. Blood in the urine ANS: A, D, E Signs and symptoms of a urinary tract disorder in the childhood period are fatigue, growth failure, and blood in the urine. Edema is noted, not dehydration, and hypertension is present, not hypotension. 8. What dietary instructions should the nurse give to parents of a child in the oliguria phase of acute glomerulonephritis with edema and hypertension? (Select all that apply.) a. High fat b. Low protein c. Encouragement of fluids d. Moderate sodium restriction e. Limit foods high in potassium ANS: D, E Dietary restrictions depend on the stage and severity of acute glomerulonephritis, especially the extent of edema. A regular diet is permitted in uncomplicated cases, but sodium intake is usually limited (no salt is added to foods). Moderate sodium restriction is usually instituted for children with hypertension or edema. Foods with substantial amounts of potassium are generally restricted during the period of oliguria. Protein restriction is reserved only for children with severe azotemia resulting from prolonged oliguria. A low-protein, high-fat diet with encouragement of fluids would not be recommended. 9. What dietary instructions should the nurse give to parents of a child with minimal change nephrotic syndrome with massive edema? (Select all that apply.) a. Soft diet b. High protein c. Fluid restricted d. No salt added at the table e. Restriction of foods high in sodium ANS: D, E The child with minimal change nephrotic syndrome maintains a regular diet, not soft. However, salt is restricted during periods of massive edema and while the patient is on corticosteroid therapy; no salt is added at the table, and foods with very high salt content are excluded. Although a low-sodium diet will not remove edema, its rate of increase may be reduced. Water is seldom restricted. A diet generous in protein is logical, but there is no evidence that it is beneficial or alters the outcome of the disease. 10. What dietary instructions should the nurse give to parents of a child undergoing chronic hemodialysis? (Select all that apply.) a. High protein b. Fluid restriction c. High phosphorus d. Sodium restriction e. Potassium restriction ANS: B, D, E Dietary limitations are necessary in patients undergoing chronic dialysis to avoid biochemical complications. Fluid and sodium are restricted to prevent fluid overload and its associated symptoms of hypertension, cerebral manifestations, and congestive heart failure. Potassium is restricted to prevent complications related to hyperkalemia; phosphorus restriction helps prevent parathyroid hyperactivity and its attendant risk of abnormal calcification in soft tissues. Adequate protein, not high intake, is necessary to maximize growth potential. Fluid limitations are determined by residual urinary output and the need to limit intradialytic weight gain. 11. A child is hospitalized in acute renal failure and has a serum potassium greater than 7 mEq/L. What temporary measures that will produce a rapid but transient effect to reduce the potassium should the nurse expect to be prescribed? (Select all that apply.) a. Dialysis b. Calcium gluconate c. Sodium bicarbonate d. Glucose 50% and insulin e. Sodium polystyrene sulfonate (Kayexalate) ANS: B, C, D Several measures are available to reduce the serum potassium concentration, and the priority of implementation is usually based on the rapidity with which the measures are effective. Temporary measures that produce a rapid but transient effect are calcium gluconate, sodium bicarbonate, and glucose 50%, and insulin. Definitive but slower-acting measures are then implemented which include administration of a cation exchange resin such as sodium polystyrene sulfonate (Kayexalate), 1 g/kg, administered orally or rectally, and/or dialysis. 12. Parents of a child who will need hemodialysis ask the nurse, What are the advantages of a fistula over a graft or external access device for hemodialysis? What response should the nurse give? (Select all that apply.) a. It is ready to be used immediately. b. There are fewer complications with a fistula. c. There is less restriction of activity with a fistula. d. It produces dilation and thickening of the superficial vessels. e. The fistula does not require a needle insertion at each dialysis. ANS: B, C, D The creation of a subcutaneous (internal) arteriovenous fistula by anastomosing a segment of the radial artery and brachiocephalic vein produces dilation and thickening of the superficial vessels of the forearm to provide easy access for repeated venipuncture. Fewer complications and less restriction of activity are observed with the use of a fistula. Both the graft and the fistula require needle insertion at each dialysis. The fistula cannot be used immediately. 13. What are signs and symptoms of a possible kidney transplant rejection in a child? (Select all that apply.) a. Fever b. Hypotension c. Diminished urinary output d. Decreased serum creatinine e. Swelling and tenderness of graft area ANS: A, C, E The child with a kidney transplant who exhibits any of the following should be evaluated immediately for possible rejection: fever, diminished urinary output, and swelling and tenderness of graft area. Hypertension, not hypotension, and increased, not decreased, serum creatinine are signs of rejection. MATCHING Match the classification of urinary tract infections of inflammations to its definition. a. Persistent urinary tract infection- 3. Persistence of bacteriuria despite antibiotic treatment b. Cystitis- 5. Inflammation of the bladder c. Urethritis- 4. Inflammation of the urethra d. Pyelonephritis- 1. Inflammation of the upper urinary tract and kidneys e. Urosepsis- 2. Febrile urinary tract infection coexisting with systemic signs of bacterial illness 1. Inflammation of the upper urinary tract and kidneys-D. PYELONEPHRITIS 2. Febrile urinary tract infection coexisting with systemic signs of bacterial illness-E. UROSEPSIS 3. Persistence of bacteriuria despite antibiotic treatment- A. PERSISTANT URINARY TRACT INFECTION 4. Inflammation of the urethra- C. URETHRITIS 5. Inflammation of the bladder- B. CYSTITIS Chapter 25: The Child with Gastrointestinal Dysfunction MULTIPLE CHOICE 1. What test is used to screen for carbohydrate malabsorption? a. Stool pH b. Urine ketones c. C urea breath test d. ELISA stool assay ANS: A The anticipated pH of a stool specimen is 7.0. A stool pH of less than 5.0 is indicative of carbohydrate malabsorption. The bacterial fermentation of carbohydrates in the colon produces short-chain fatty acids, which lower the stool pH. Urine ketones detect the presence of ketones in the urine, which indicates the use of alternative sources of energy to glucose. The C urea breath test measures the amount of carbon dioxide exhaled. It is used to determine the presence of Helicobacter pylori. ELISA (enzyme-linked immunosorbent assay) detects the presence of antigens and antibodies. It is not useful for disorders of metabolism. 2. A toddlers mother calls the nurse because she thinks her son has swallowed a button type of battery. He has no signs of respiratory distress. The nurses response should be based on which premise? a. An emergency laparotomy is very likely. b. The location needs to be confirmed by radiographic examination. c. Surgery will be necessary if the battery has not passed in the stool in 48 hours. d. Careful observation is essential because an ingested battery cannot be accurately detected. ANS: B Button batteries can cause severe damage if lodged in the esophagus. If both poles of the battery come in contact with the wall of the esophagus, acid burns, necrosis, and perforation can occur. If the battery is in the stomach, it will most likely be passed without incident. Surgery is not indicated. The battery is metallic and is readily seen on radiologic examination. 3. The mother of a child with cognitive impairment calls the nurse because her son has been gagging and drooling all morning. The nurse suspects foreign body ingestion. What physiologic occurrence is most likely responsible for the presenting signs? a. Gastrointestinal perforation may have occurred. b. The object may have been aspirated. c. The object may be lodged in the esophagus. d. The object may be embe