NCSBN – Lesson 7: Reduction of Risk Potential Study Guide,100% CORRECT

NCSBN – Lesson 7: Reduction of Risk Potential Study Guide Chest Physiotherapy Therapeutic Procedures Chest physiotherapy is an airway clearance technique used by health care providers. • Abdominal & Pursed Lip Breathing o Breathing exercises include abdominal breathing and pursed lip breathing. The client is positioned on their back with their knees bent and hands placed on their abdomen during abdominal breathing. Pursed lip breathing is done by taking a deep breath in through the nose and pursing the lips while breathing out the mouth. The exhalation through the pursed lips should take twice as long as the inhale. • Coughing Techniques o Ask your client to lean forward and take deep breaths and cough several times during expiration. The cough must come from deep in the chest to help move secretions. • Postural Drainage o Place clients in positions that facilitate drainage (head down, prone, right and left lateral, and upright). Secretions produced can be coughed or suctioned out. • Percussion & Vibration o Perform percussion and vibration during postural drainage. Percussion is a rhythmic striking of the chest with cupped hands and is alternated with vibrations. Vibrations are executed when the client exhales and pressure is applied to the chest. • Incentive Spirometer o An incentive spirometer is used to maximize respiration and mobilize secretions. Tracheostomy Care & Suctioning Therapeutic Procedures • Complications of tracheostomy care include airway obstruction, tracheal necrosis and infection. Complications of suctioning include hypoxia, bronchospasm, vagal stimulation, tissue trauma, cardiac dysrhythmia and infection. • Maintaining a patent airway is the nursing priority. • The cuff is used to prevent aspiration and the pressure should be maintained at 14-40 mmHg. • Encourage fluids to facilitate removal of secretions and provide good oral hygiene. Indications for suctioning a tracheostomy include noisy respirations, restlessness, increase pulse or respirations, and a presence of mucus in the airway. • Complications that you should be sure to assess for are infection, tracheal necrosis, and airway obstruction. Oxygen Therapy Therapeutic Procedures • Complications related to oxygen administration include infection, drying of mucosa, respiratory depression, oxygen toxicity and combustion. Be sure to change masks and tubing daily and attach humidification if needed. Monitor the respiratory rate frequently to watch for depression and toxicity. • If the client is using oxygen in their home, the visiting nurse will assess the electrical plugs and equipment. Remind the client of the danger associated with smoking near oxygen. Place a sign on the front door that oxygen is in use. Method Nasal Cannula Oxygen Delivered 23-42% at 1-6 L/min Method Face Mask Oxygen Delivered 40-60% 6-8 L/min Method Partial Rebreather Mask Oxygen Delivered 50-75% at 8-11 L/min Method Nonrebreather Mask Oxygen Delivered 80-100% at 12 L/min Method Venturi Mask Oxygen Delivered 24-40% at 4-8 L/min Method Oxygen Delivered Tracheostomy Collar 30-100% at 8-10 L/min Method Oxygen Hood Oxygen Delivered 30-100% 8-10 L/min Chest Tubes Therapeutic Procedures A chest tube system is an intrapleural drainage system with one or more chest catheters in the pleural space attached to a drainage system. • Nursing Considerations o The water-seal chamber should be filled with sterile water to the level that is specified by the manufacturer. If suction is to be used, the suction control chamber will need to be filled (per the health care provider's orders). Encourage clients to change positions as often as they can, cough and take deep breaths. o The drainage system must be kept below the level of insertion. The system should be checked frequently for kinks in the tubing. Observe for fluctuations of fluid in the water-seal. o To remove the chest tube, have clients forcibly bear down while holding their breath (Valsalva maneuver). The health care provider will remove the tube and the nurse will apply an occlusive dressing. o Drainage in the system is expected; however, drainage that is more than 70-100 mL/hour is considered excessive and the health care provider should be notified. o The chest tube insertion site is covered with an occlusive (airtight) dressing to prevent air from entering the pleural space. o Positioning the drainage system below the client's chest allows gravity to drain the pleural space. o • Complications o If there is an air leak in the system indicated by a constant bubbling in the water-seal chamber, the health care provider must be contacted. o If the chest tube becomes dislodged, the nurse will apply pressure over the site and let air escape. Contact the health care provider immediately. o If the tube becomes disconnected from the drainage system, cut the contaminated tip off and insert a sterile connector. Then reattach it to the drainage system. Central Venous Pressure (CVP) Therapeutic Procedures CVP measures blood volume and efficiency of the cardiac pump. A central line is threaded into the right atrium to measure the central venous pressure. • Procedure o The client will have a catheter inserted in the jugular, subclavian or antecubital vein. o The manometer will attach to a three-way stopcock that is also connected to the IV to the central catheter. o The stopcock is opened to allow fluid in the manometer to flow to the client. o The client must be in a flat bed. o When the level stabilizes, the reading is taken at the highest level of fluctuation. o Normal readings range between 2-6 mm. ▪ High levels indicate hypervolemia and low levels indicate hypovolemia. • Nursing Care o Maintain a dry, sterile dressing and change dressing, IV bag, manometer and tubing every 24 hours. o Instruct clients to hold their breath when the CVP is inserted, withdrawn or when a tube is changed to prevent an air embolism. o Monitor clients for complications, which include pneumothorax from catheter insertion, air embolism or an infection at the insertion site. Ear Procedures Therapeutic Procedures Common ear procedures conducted by the nurse include ear irrigations and administering ear drops. • Ear Irrigation o The client will tilt their head and the nurse will direct a stream of fluid against the sides of the ear canal. o The client will lie on the affected side to improve drainage. o Do not irrigate if you observe swelling or tenderness. • Ear Drops o Pull the outer ear up and back for an adult, or down and back for a child. o Place the drops so they run down the wall of the ear canal. Have the client lie with the affected ear up to allow for absorption. Eye Procedures Therapeutic Procedures Common eye procedures include eye irrigation and eyedrop instillation. • Eye Irrigation o The client will tilt the head back and the nurse should direct fluid from the inner to the outer canthus using a small bulb syringe. Have a basin close by for fluid collection. • Eyedrop Instillation o The dropper should be sterile and will not touch the eye during the procedure. o Have the client tilt their head back and look up. ▪ The drops should be placed into the center of the lower conjunctival sac. ▪ Have the client blink several times between drops. Nasogastric Tubes Therapeutic Procedures A nasogastric tube may be placed to decompress the abdomen, administer medication or provide nutrition. • 14-16 F • Place the tube at the tip of the nose and measure by extending the tube to the earlobe and then down to the xiphoid process. • Lubricate 3-4 inches of the tube • Extend neck back on the insertion • When you passed the nasal pharynx, asked patient to swallow (fluids), unless contraindicated to help with the placement of the tubing • With the end of the tube just above the oral pharynx, flex the patient’s head FORWARD • Advance the tube an inch or 2 as patient swallow Nursing Interventions in Gastric or Intestinal Intubation • Intubation o Before inserting anything through the nares, check for patency and for history of deviated septum, nosebleeds, anticoagulant therapy (if history is positive, confirm insertion route with care provider) o Standard precautions must be used; gown and gloves are recommended and the nurse should also consider face and eye protection o Remove client's dentures o Position client in high Fowler's o Measure for length of tube: ▪ Adults — from tip of nose to ear lobe to xiphoid process ▪ Infants — from tip of nose to earlobe to midway between xiphoid process and umbilicus o Instruct client to bend head forward and to swallow during insertion; take small sips of cold fluid through a straw or ice chips may help (babies can suck on a pacifier) o Lubricate 2-4 inches (5-10 cm) of the tube with lubricant o Insert, but do not force, the tube o Check placement of tube : ▪ By X-ray ▪ By aspiration of stomach contents to test for pH (for gastric placement, should be less than five) ▪ Do NOT auscultate for instilled air — you can't be sure that the sound you hear is actually coming from the GI tract o Document: ▪ The reason for the tube insertion ▪ Type and size of tube ▪ The nature and amount of aspirate ▪ The type of suction and pressure setting if for suction ▪ The nature and amount of drainage ▪ The effectiveness of the intervention, i.e., no more nausea or vomiting • Care of the intubated client: o Provide frequent mouth and nose care o Re-tape or anchor PRN o Monitor fluid and electrolyte balance o Monitor tube for patency — aspirate tube prior to any infusions and check for kinks o Irrigate tube per orders — usually with tap water or sterile normal saline o Monitor for signs of metabolic alkalosis or acidosis: o Metabolic alkalosis — if tube is located in the stomach o Metabolic acidosis — if tube is located in small intestine o Record amount of and color of output o Observe for and respond to complications: pulmonary aspiration, abdominal distention, nausea, vomiting Surgical Drains Therapeutic Procedures Surgical drains are used to collect excess fluid from a surgical wound. • Penrose o A penrose drain is a simple latex drain that is freely laid inside the wound/site without sutures to hold it in place. Drainage flows onto a gauze dressing. • T-Tube o A T-tube is commonly used after gallbladder surgery. o It is placed in the common bile duct to allow the passage of bile. o The nurse will keep the drain below the client's waist and fasten the drain to the dressing for safety. o The nurse will monitor the drainage and teach their client how to care for the drain if they are being discharged with it. o The drain must be clamped one hour before and after each meal. • Jackson-Pratt Drain o A Jackson-Pratt drain is a self-suction drain with a collection reservoir. o The nurse will monitor the amount and character of the drainage and notify the health care provider if the drainage turns bright red. • Hemovac o A hemovac is a large, portable wound self-suction device with a reservoir. o The hemovac is commonly used after a mastectomy. o The nurse will monitor the amount and character of the drainage and notify the health care provider if the drainage turns bright red. Enema Therapeutic Procedures • There are three types of enemas o oil retention o soapsuds o tap water • During the procedure, the solution is instilled into the rectum and sigmoid colon to promote defecation. • The client will be in a Sims' position while the nurse inserts the tip of the tube no more than 3-4 inches into the rectum. • The client should hold onto the solution for 5-10 minutes if possible. • Do not administer an enema if the client complains of abdominal pain, nausea, vomiting or if you suspect appendicitis. Urinary Catheters Therapeutic Procedures • The nurse will provide perineal hygiene, using soap and water or otherwise following the health care organization's procedure. • Observe the client for signs of inflammation or infection and maintain patency of the catheter (irrigate if ordered). • Document intake and output (I/O). • Empty system every shift or when it is half to three-quarters full. Be sure to keep the collection system lower than the level of the bladder. Take measures to prevent catheter- associated urinary tract infections. • In general, the larger the gauge number is the larger the catheter size o Smallest effective catheter size is preferred to prevent trauma ▪ Children: 8 – 10 Fr ▪ Adults: 14 – 16 Fr ▪ Young girls: 12 Fr o Types of Catheters Ostomy ▪ ST Indwelling • When urine outflow is obstructed • When bladder, urethra, and surrounding structures have been surgically repaired • When continuous or intermittent bladder irrigations are required ▪ LT Indwelling • When chronic urinary retention is not manageable by intermittent catherization • With terminal ill patients when bed linen changes or toileting is painful • When skin is irritated by urine and forms skins rashes and shit ▪ Intermittent • A single-use straight catheter is introduced for 5-10 mins, just long enough to drain the bladder o Common in patients who have incomplete bladder emptying d/t neurogenic conditions o Used to obtain a sterile urine specimen o Used to assess residual urine after urination o Used to manage residual stricture • Coude Catheter o Has a curved tip and is used for MALE patients who have enlarged PROSTATES that partly obstructs the urethra o Stiffer and easier to control than the straight tip catheter Therapeutic Procedures Creating an ostomy is a surgical procedure that creates an opening into the abdominal wall for fecal or urinary elimination. A portion of intestinal mucosa or ureter is brought through the abdominal wall, creating a stoma through which feces or urine can drain. • Types o Bowel ostomies include an ileostomy or colostomy. o Urinary diversions include ileal conduit (ileal loop) and ureterostomies. • Nursing Interventions o The ostomy pouch should be emptied when it is about one half full using standard precautions and the skin will need to be protected around the stoma (see organizational policy). o The nurse will monitor for and report immediately if the stoma oozes blood when touched, if there is blood in the pouch or any kind of bleeding from the stoma. o Contact the health care provider if a urinary diversion output is less than 30mL/hour or if the urine has a foul smell, is cloudy or has blood in it. o If the client is experiencing a burning sensation around the base of the urinary diversion stoma or they have back pain, chills or a fever, an infection may be present. o The nurse will also address any issues with body image, fear of mutilation or shame which are common with new ostomy clients. o The nurse will also provide teaching on the types of equipment used in ostomy care and maintenance, how to irrigate a colostomy, how to prevent complications and how to avoid constipation, diarrhea and excessive gas. Evaluate your Client's Stoma You are documenting your observations of a client's stoma. Consider the image above. How would you describe the stoma's overall appearance? Describe the color of the stoma. How would you describe the shape? Describe the overall appearance of the effluent. The color is brown-yellow, how would you describe the consistency. Describe the characteristics of the peristomal skin. This stoma is moist, shiny and smooth. The effluent is liquid. You would also describe the presence or absence of odor when you document the effluent. (It might be strong, foul, pungent, fecala, musty or sweet.) The skin is intact, excoriated directly around the stoma. Hemodialysis Therapeutic Procedures • Hemodialysis removes accumulated waste products though the cleansing of the blood. It can be used short-term for acute illness or long-term with clients in renal failure. • Complications include o hemorrhage, hepatitis, nausea and vomiting, disequilibrium syndrome, muscle cramps, air embolism and sepsis. • The nurse will check the "thrill" and bruit every eight hours. Blood pressure and lab draws are not to be conducted on the affected extremity. Intra-aortic Balloon Pump • The intra-aortic balloon pump is a device that helps blood circulate after myocardial failure. • The device will not be used with clients who have aortic regurgitation, dissection or an abdominal aortic aneurysm. Complications include infection, bleeding, hematoma, diminished or absent pulse and/or thrombus at insertion site. The pump can cause an aortic dissection or perforation, thrombocytopenia, dysrhythmias and myocardial failure. • An informed consent form must be obtained prior to the procedure. The nurse will take the client's baseline vital signs, hemodynamic parameters and ECG as ordered. The nurse will monitor the client's level of consciousness (LOC) and obtain arterial blood gases as ordered. It is important to maintain asepsis, monitor I/O and monitor for complications frequently. • IMPORTANT: o The client cannot bend the leg in which the balloon was inserted. This is an uncomfortable and difficult task for the client. Maintain emotional support to the client and family during the duration of the monitoring process. Level of Consciousness Pacemaker Therapeutic Procedures • A pacemaker is a battery-powered pulse generator that stimulates the heart via electrodes that transmit electricity to the heart. They are commonly used to correct dysrhythmias such as sinus bradycardia or ventricular tachycardia. • Complications for pacemakers include o infection, perforation of myocardium, pneumothorax, hemothroax, dysrhythmia, thrombosis, pacemaker failure, syncope, hypotension, pallor, hiccups and shortness of breath. • Informed consent must be obtained prior to the procedure. The nurse will initiate preoperative care as ordered. The client's vital signs and ECG will be monitored as well as post-anesthesia care post-procedure. The client will be on bed rest as ordered. Client teaching will include: • How to take their pulse and when to report a sudden increase or decrease in rate • Carry an ID card and request hand scanning at security check points at airports • Avoid situations involving electromagnetic fields • Periodic battery replacement and medical follow-up • Frequent rest periods at home or work Document information about your client's pacemaker including including the model of the pacemaker, date and time of insertion, location of the pulse generator, stimulation threshold and pacer rate. Automatic Implantable Cardioverter-Defibrillator (AICD) Therapeutic Procedures • An AICD is a pulse generator implanted in a subcutaneous pocket. It delivers an electrical shock to the heart when a ventricular tachycardia or ventricular fibrillation is detected. It is used to treat life-threatening ventricular dysrhythmias. • Complications include o infection, malfunction and battery failure. Informed consent must be obtained prior to the procedure. The nurse will initiate preoperative care as ordered including medications and ECG. Client teaching will include: • Findings of defibrillation discharge • Importance of routine follow-up • Findings of complications • Limit activity as ordered • Avoid strong magnetic fields • Wear MedicAlert® identification • Assure client that no household appliance will affect AICD • Shock may be painful Endotracheal Tubes • Therapeutic Procedures o Endotracheal tubes (ET) are placed when an artificial airway is needed. o Check the tube placement by listening for bilateral breath sounds and looking for bilateral chest movement. The client will be monitored via pulse oximetry. Typically an X-ray is ordered for placement confirmation. o The nurse will regularly assess tube placement and security, breath sounds, and bowel sounds. o The ET tube should be marked where it touches the mouth or teeth and be secured with tape to stabilize. Ventilator • Therapeutic Procedures o A ventilator is used when the client needs assistance getting oxygen into the lungs and removing carbon dioxide from the body. The nurse must have the knowledge and skills to effectively and safely maintain a client that is on a ventilator. • Ventilator Settings o Tidal volume: amount of air delivered with each machine breath o Rate: number of breaths delivered by the machine in a minute o FIO2: fraction of inspired oxygen (written as 0.6) o % O2: percent of oxygen (for example: 60%) o FIO2 of 0.6 = 60% oxygen o Signs: deep breaths (higher volume) delivered periodically by ventilator o Positive end expiratory pressure (PEEP): ▪ Normal physiologic PEEP is equal or less than 5 cm H2O ▪ Provides a baseline of positive pressure throughout exhalation ▪ Used to reduce airway collapse and intrapulmonary shunting • Nursing Considerations o Clients on a ventilator will have their vital signs assessed every four hours. o Breath sounds will be evaluated for any abnormalities and continuous pulse oximetry is required. o The nurse will assess for suctioning needs and provide good oral care at least twice a shift. o Evaluate symptoms of hypoxia, neurologic status and ABG. Be sure to observe for skin breakdown around the tube site and for complications of aspiration. o The nurse will ensure ventilator is working properly. ▪ If the high-pressure alarm goes off – check for tube obstruction: • Client biting the tube • Increased secretions • Tube slipping into right main stem bronchus • Pneumothorax ▪ If the low pressure alarm goes off – check for disconnection of tubes. Dressing Types Description Use Advantage Disadvantage NC Gauze • Oldest, most common dressing. • It comes in woven and non- woven forms. • Gauze may be impregnated with various products, e.g., antimicrobials. • draining wounds, • necrotic wounds, • wounds with tunnels, tracts or dead space • surgical incisions • burns • pressure ulcers. • Wicks away wound exudate • Does not interact with wound • Comes in many sizes and lengths • Must be held in place by a secondary dressing • Fibers may shed or adhere to wound Non- Adherent • Made with a substance that hinders sticking (example: Telfa pad). • Nonmedicated tulles, silicone, and petrolatum-based woven dressings • • absorbs wound exudate • does not stick to the wound. • Require a cover (absorbent) dressings Transparent Film • Made of polyurethane or copolymer. • It has a porous adhesive layer that lets oxygen pass through and allows moisture vapor to escape from the wound. • small, superficial wounds, e.g., over IV insertion sites • Doesn't have to be removed to examine wound • Impermeable to external fluid and bacteria • Available in many sizes • Fluid retention under dressing may lead to peri-wound maceration • Has been used for small, superficial wounds (skin tear or for high risk skin) • stage I or II pressure ulcers • partial-thickness wounds. • Useful in securing IVs and other tubings since they provide occlusive barrier • Difficult to remove and may cause unnecessary trauma: remove with a “LATERAL PULL” technique Hydrocolloi d • swells to accumulate exudate when it contacts the wound. • shallow to moderate dermal wounds, e.g., venous or arterial ulcers and decubitus ulcers. • Debrides • Maintains wound humidity • Liquefies necrotic debris impermeable to contaminants • May stay safely for days • Occlusive — does not allow air contact • Should not be used on heavily draining or infected wounds • Characteristic odour may accompany dressing change and should not be confused with infection Hydrogel • is impregnated with water or glycerin-based amorphous gel (high water content) • Available in gels, solid sheets, or impregnated gauze • non-adherent. • Partial or full thickness wounds • Burns • deep or necrotic wounds • radiation-damaged skin. • Decreases pain • Maintains humidity • Debrides • Does not stick to wound • Can be used with infected wound • Must be covered with another dressing • Should not used on draining wounds • Solid sheets should not be used on infected wounds Composites • combinations of two or more different products, featuring a bacterial barrier, absorptive layer, foam, hydrocolloid or hydrogel. • Increase absorbency and autolysis • • Facilitate autolytic debridement • Conformable and easy to apply and remove • Come in many sizes and shapes • May be contraindicated for stage IV pressure ulcers • Adhesive borders limit use on fragile skin • Use on wounds on which dressing may stay in place for several days Foam • is an absorptive dressing consisting of hydrophilic polyurethane (non-adhesive or adhesive) or film-coated gel. • stages II-IV pressure ulcers • partial- and full- thickness wounds • Comes in many sizes, shapes and forms • Conformable • Easy to apply and • Secondary dressing or tape may be needed to secure in place • Not recommended • Used on moderate to heavily draining wounds • Occlusive foams • Sheets or cavity packing • Some have fluid lock with drainage or surgical wounds. easy to remove (non-adherent) for non-draining wounds or dry eschar • May lead to macerating periwound skin if not changed appropriately SHOULD NOT be used on heavily draining ort infected wounds Alginates • made from polysaccharide from seaweed. • moderately or highly exudative wounds. • Forms gel on wounds and moist environments • Reduces pain • Can be used to pack cavities • Low allergenic • Not recommended for dry wounds or hard eschar • May require secondary dressing • Not recommended in anaerobic infections • Hydrophilic Fibres • Sheet or packing strip of sodium carboxymethyl-cellulose • Converts to a solid gel when activated by moisture (fluid lock) • Best for moderate amount of exudate • • • Not used on dry wounds • Avoid packing into narrow deep sinuses b/c of low tensile strength Hypertonic • Sheet, ribbon, or gel impregnated with sodium concentrate • Gel may be used on dry wounds • • • Gauze ribbon should not be used on dry wounds • May be painful on sensitive tissues Casting & Traction Therapeutic Procedures Casting • Casting immobilizes the affected body part. • Casts may be plaster or fiberglass. o With plaster casts, immediately after the cast is placed it should not be covered and allowed to dry. o The client will avoid resting the cast on hard surfaces or edges. o The affected limb should be elevated above the heart on a soft surface. o Monitor for complications such as blueness/paleness, pain, numbness or tingling sensations on the affected area. • Once the cast is dry, the client can be mobile. Encourage any prescribed exercises. • The client will report any breaks or foul smells from the cast. Although difficult, the client should not scratch the skin under the cast or put anything underneath the cast. If the skin breaks under the cast, an infection is likely. • Complications include o impaired circulation, peripheral nerve damage and pressure necrosis. Traction Traction –- pulling force and opposing force applied to an injured extremity. • Purpose o The purpose of traction: ▪ To align the needs of a fracture by pulling the limb into a normal anatomical position ▪ To reduce muscles spasms ▪ To relieve pain ▪ To take the pressure off the ends of bones by relaxing the muscle • Application o Traction is applied using one of two methods. ▪ Skin Traction • Uses 5-7 pound (2.27-3.18 kg) weights attached to the skin to indirectly apply force • Weights are attached either through tape, using straps, boots or cuffs • Examples: o Buck's traction: used to immobilize, position, and align the lower extremity in the treatment of contractures and diseases of the hip and knee ▪ Russell’s traction • Buck’s with a ling under the knee o Promotion of neurovascular integrity is the most important aspect of care: assess pedal pulse, color, temperature, sensation and capillary refill of the involved extremity. o Donlop's traction: used for children with fractures of the upper arm when the arm must remain flexed o Pelvic traction o Bryant's traction: used to immobilize both lower extremities in the treatment of a fractured femur or in the correction of a congenital hip dislocation ▪ Skeletal Traction • Skeletal traction uses pins inserted into bones: o Used when more pulling force is needed than skin traction can provide o Approximately 25-40 pounds (11.34-18.14 kg) of weight can be applied o Requires the surgical placement of tongs, pins or screws into the bone The TLSO (thoracolumbosacral orthotic) is a custom molded brace prescribed to give support to the spinal column from the sixth thoracic vertebra to the sacrum. Clients are advised to wear only a tight fitting t-shirt under the brace to protect the skin and absorb sweat. Although the brace will not be damaged by water, it is typically removed when showering; the client will need to lie down to remove or put on the brace. The health care provider will instruct the client about how often and how long to wear the brace each day. The client is instructed not to attempt to bend or to lift objects weighing more than 10 pounds. • Nursing Care o Traction: ▪ Be sure to know if the traction is to be applied either intermittently or continuously ▪ Be sure to know the amount of weight to be applied ▪ Check ropes and knots, pulleys and weights at least once a shift: • Rope should move freely over pulleys • Prevent friction, which will impair the efficiency of the traction ▪ Weights should hang freely ▪ Identify and maintain countertraction: • Countertraction is the force opposing the pull of traction, which is generally provided by the client's body • If countertraction is not maintained, the client is not in traction • Sign of loss of countertraction is that the client slides down in bed • Elevate the foot of the bed with shock blocks ▪ Maintain client in correct alignment and body position ▪ Skin care: • Regular assessment for breakdown, especially coccyx and heels but also all bony prominences • Assessment and care of pins, wires or tongs with skeletal traction and observe for signs of infection • Assessment of skin by removing traction at least once per day for hygiene and reapplication (manual traction should be used while skin traction is off) ▪ Perform regular neurovascular checks approximately every four hours and document: • Sensation • Temperature • Movement • Distal perfusion ▪ Assist client to cough and deep breathe and to use incentive spirometer ▪ Assist with range of motion exercises ▪ Assist client with use of trapeze ▪ Assess for skin breakdown Bone Marrow Transplant Therapeutic Procedures A bone marrow transplant is used to replace or stimulate non-functioning bone marrow. It is done through an intravenous infusion from the donor to the recipient. Clients with leukemia, aplastic anemia and immunodeficiency disorders are common candidates for bone marrow transplants. • Types o An autologous transplant is when a client receives their own bone marrow cells, harvested before high-dose chemotherapy or radiation. o A syngeneic transplant is used when the donor and recipient are identical twins. o An allogeneic transplant is used when the donor is not genetically identical to recipient but is a match. • Complications o Infection: precautions to take to avoid infection o Thrombocytopenia o Anemia o Micropulmonary emboli o Bleeding o Stomatitis o Nutritional deficiencies o Disease relapse o Graft rejection o Graft Versus Host Disease (GVHD): ▪ Occurs when donor T lymphocytes introduced into a host who is immunologically incompetent ▪ T lymphocytes proliferate and attack host cells, which they think are foreign ▪ GVHD risk peaks 30-50 days after BMT ▪ Graded according to degree of organ involvement ▪ Findings include dermatitis, hepatitis and enteritis with diarrhea • Nursing Considerations o Pharmacological treatment includes Cyclosporin A (immunosuppressant drug), steroids and anti-thymocyte globulin (immunosuppressant drug). o The nurse will explain the procedure to the client, answer any questions and obtain the client's informed consent. The nurse will also: ▪ Assess baseline hemodynamic status prior to the injection ▪ Assess vital signs every 15 minutes during infusion post-procedure ▪ Encourage intake of fluid and high protein, high calorie diet ▪ Provide frequent oral hygiene ▪ Weigh the client daily ▪ Measure I/O ▪ Monitor all mucous membranes, wounds and catheter sites daily ▪ Administer total parenteral nutrition (TPN) if ordered ▪ Maintain isolation as ordered (reverse isolation or laminar air flow room) ▪ Sterilize any non-sterile objects before bringing them into the room ▪ Administer medications as ordered ▪ Test urine, stool and emesis for occult blood ▪ Report any signs of bleeding immediately ▪ Avoid invasive procedures ▪ Maintain a safe environment ▪ Encourage progressive activity as ordered ▪ Provide emotional support ▪ Observe for findings of complications • Client Teaching o Self-care procedures o Findings of complications o Infection precautions o Safety precautions o Importance of good nutrition o Importance of good oral hygiene Precautions - Bone Marrow Transplant After discharge from the hospital, bone marrow recipients recover at home for 2-4 months and generally cannot return to full-time work for up to six months after the transplant. The following is a list of precautions these individuals should take to reduce their risk of infection. • Don'ts o The following is a list of things to minimize contact with or to avoid. ▪ Avoid contact with school children ▪ Avoid crowded places, e.g., movie theaters, grocery stores, department stores ▪ Avoid contact with anyone with a communicable disease ▪ Minimize contact with pets: • Cats: o Do not place the litter box in the kitchen, dining room or other area of the house where food is prepared or eaten o Someone else should be responsible for daily litter box cleaning for six months after the transplant ▪ Avoid contact with reptiles, ducklings or chicks ▪ Avoid swimming pools or walking/wading/playing in recreational water for first year ▪ Avoid immunizations without physician's approval ▪ Prevent infections transmitted by direct contact and respiratory transmission: • Avoid gardening, mulching, raking, mowing, farming, or direct contact with soil and plants • Prevent respiratory infections: o Avoid close contact with people who have respiratory illnesses, e.g., cough, cold o Avoid crowded areas, e.g., movie theaters, grocery stores, department stores o Avoid construction sites o Avoid wood-burning fireplaces o Avoid the use of a room humidifier (due to water- harboring bacteria) ▪ Avoid restaurant food for first three months ▪ Avoid drinking well water, unless the water is tested more than twice a day for bacterial contamination • Do's o The following is a list of things to do. ▪ Personal hygiene: • Wash hands with antimicrobial soap and warm water, use hand sanitizer when outside the home: o Before eating o Before and after preparing food o After touching pets or animals o After sneezing, coughing, or blowing nose o Before and after any central venous catheter care or intravenous infusion o Before taking oral medications o After touching soiled linens or clothes • Brush teeth and gums • Shower or bathe as usual; however, do not submerge central venous catheter under water ▪ Take prophylactic antibiotics ▪ Call the doctor if any of the following signs or symptoms occur: • Cloudy or foul-smelling urine • Cough with yellow or green sputum or a persistent, dry cough • Diarrhea • Exposure to varicella, strep throat, herpes, or mononucleosis • Fever of 100° F (37.8° C) for allogeneic clients or 100.5° F (38.1° C) for autologous clients • Lesions or white patches in the mouth or on the tongue • Redness, swelling, tenderness, or drainage at the site of the central venous catheter • SOB • Sinus drainage, nasal congestion, headaches, or tenderness along the upper cheekbones • Skin rash • Sore throat, scratchy throat, or pain when swallowing • Sweats or chills • Trouble urinating • Vaginal discomfort, itching, or unusual discharge ▪ Note: individuals are not required to wear a mask when they go outside their homes, but some might feel "safer" wearing a mask Client Care - Steroid Therapy • Never discontinue medications abruptly – it could precipitate an acute crisis • Take medication with breakfast – corresponds to biorhythms and reduces gastric irritation • Take the higher dose in morning and lower doses in evening • Always take medication with a meal or a snack • Carry extra medication during travel • Contact the health care provider during periods of acute or chronic stress, such as pregnancy or infections; medications will need to be adjusted and additional instructions may be needed • Wear MedicAlert® identification and always carry a medical card • Avoid other people with infections or avoid going to crowded shopping malls, grocery stores, or other venues in times when the cold viruses and influenza are most evident • Encourage weight-bearing exercise and an increase in protein and calcium intake, especially for women, who will be at an increased risk for bone loss and osteoporosis when undergoing steroid therapy • Wear sun block with an SPF of 15 or higher; avoid direct sunlight from 10 am to 4 pm – due to increased sensitivity to sunlight • Recognize the normal signs of infections and understand the importance of contacting the health care provider at the onset of any sign of infection – steroid use masks the signs of infection • Be aware of the anticipated side effects of (long-term) steroid therapy, including: o Weight gain o Swelling of face, hands, ankles o Skin changes: ▪ Excess hair growth on face, hands, arms, back, legs ▪ Easy bruising, thinning of skin ▪ Acne of the face, back and chest (teens and young adults) o Mood swings and depression o Increase in blood sugar levels – client may need to take insulin Radiation Therapy Therapeutic Procedures Radiation therapy uses high-energy radiation to shrink tumors and kill cancer cells. X-rays, gamma rays and charged particles are types of radiation used for cancer treatment. The nurse must have knowledge on how to prepare and provide aftercare for clients having radiation therapy. • Radiation Safety o Always minimize the client's exposure to radioactivity, whether the therapy is intra-cavity, interstitial or metabolized. • Side Effects o The severity of the side effects depends on the location of the radiation. o Acute ▪ Fatigue ▪ Reddened, dry, itchy skin (possible sloughing and oozing) ▪ Alopecia (hair falls out) ▪ Altered taste ▪ Xerostomia (dry mouth) ▪ Esophagitis ▪ Anorexia ▪ Nausea and vomiting ▪ Diarrhea ▪ Cystitis ▪ Anemia; decreased white blood count; decreased platelets ▪ Pneumonitis ▪ Decreased sperm count; sterility o Chronic ▪ Permanent darkening of skin ▪ Permanent taste alteration ▪ Dental caries ▪ Fibrosis of gastrointestinal tract ▪ Malabsorption ▪ Radiation nephritis ▪ Cataracts ▪ Pulmonary and cardiovascular fibrosis • Methods of Delivery o Teletherapy is an external therapy treatment from a source outside the body. The tumor area is marked and other anatomical areas are protected. o Radiation is administered in small doses over time. ▪ Brachytherapy – is internal therapy radiation, which is placed in or directly on the body. ▪ Intra-cavity therapy – is when radiation is inserted into a body cavity. This is often used with gynecological cancers. ▪ Interstitial therapy – is the insertion of radioactive seeds, needles or capsules. This is used in head and neck lesions, intra-abdominal and intrathoracic lesions. ▪ Metabolized therapy – is when radioactive material is ingested, installed or injected into the body; used for thyroid, leukemia, bone and intra-pleural lesions. • Nursing Considerations o The nurse should be knowledgeable about the type of radiation used, the half-life of the isotope, the amount of isotope being used and the method of delivery. o The nurse will provide skin care and encourage the client to avoid using soaps and lotions on the radiated site. o Small, frequent, bland meals will initially be provided and antiemetic's and antidiarrheals will be administered as ordered. o Monitor the client for signs of dehydration and skin breakdown. o Provide good oral care, emotional support and a restful environment. o The nurse will teach the client: ▪ Utilize nutritional support strategies ▪ During treatment, do not wash marked area ▪ If the area must be cleansed, use only tepid water, no soap ▪ Do not wear tight clothing in the area ▪ Do not expose the area to sunlight Diagnostic Tests ▪ Do not shave or scratch the area ▪ Do not use creams, lotions or oils on the area ▪ Avoid persons with known infections ▪ Avoid injury to the area ▪ Utilize strategies to conserve personal energy The nurse will apply their knowledge and psychomotor skills when caring for clients undergoing diagnostic testing. They will be able to identify complications and provide the appropriate action. The nurse is also responsible for identifying normal and abnormal lab values and notifying the health care provider appropriately. Diagnostic Tests - Cardiovascular Nurses need a basic understanding of cardiovascular diagnostic tests. The tests are separated into the categories of: • Laboratory Tests o Arterial Blood Gases ▪ Measures tissue oxygenation, carbon dioxide removal and acid-base balance. ▪ The nurse will perform an Allen test to check collateral circulation. Arterial blood will be collected in a heparinized syringe because the test requires blood without clots. Air bubbles cannot be present in the specimen. o (Serum) Enzymes/Cardiac Markers ▪ Creatinine kinase lab results are used to diagnose an acute myocardial infarction (MI) and is detected in the blood within 3-5 hours post MI. Murakami (MM) bands present indicate skeletal muscle damage and the presence of Myocardial B and R (MB) bands indicate heart muscle damage. ▪ Troponin is a regulatory protein found in striated muscle; troponin levels are elevated 4-8 hours after a heart attack. This test is used to diagnose a heart attack and to assess the degree of damage to the heart muscle. There are two different cardiac-specific isoforms: troponin I and troponin T. o C-reactive Protein (CRP) ▪ CRP is a protein produced by the liver; levels rise with inflammation throughout the body. CRP may help determine the risk of future cardiac events in clients who have had a heart attack. CRP is a simple blood draw and no client preparation is required. o Lipid Profile ▪ The lipid profile evaluates the risk for atherosclerosis. ▪ The client should take nothing by mouth (NPO) 10-12 hours prior to the blood draw; water is permitted. ▪ Triglycerides detect risks of atherosclerosis o Brain Natriuretic Peptide (BNP) or N-terminal pro-BNP ▪ The BNP is used to measure the production of a hormone found in the left ventricle and helps diagnose and evaluate the client's risk of future cardiac events, including heart failure. ▪ It is used for prognosis and to monitor therapy. ▪ Normal range is 0.5-30 pg/mL. • Scans and X-Rays o Computed Tomography (CT) ▪ The CT test provides a three-dimensional assessment of the thorax (lungs, heart, bones and tissue). ▪ This test may also detect fractures not visible in an X-ray. ▪ It is non-invasive and painless and typically takes around 20 minutes. If contrast dye is used and a reaction occurs, the nurse will monitor the reaction. o Magnetic Resonance Imaging (MRI) ▪ The MRI provides a detailed image of the body structures. ▪ It can be used to diagnose a heart issue but can also be used to diagnosis abnormalities in other systems. ▪ The nurse will explain the procedure and assess the client for claustrophobia and verify whether the client has any metal implants (e.g., pacemaker, screws). • The client will remove all metal jewelry and objects. o Nuclear Scan ▪ Before a nuclear scan, a radioactive material is injected. ▪ The scan charts the flow through the client's heart and lungs. The nurse will monitor the client for allergic reaction. o Radiographs (X-Rays) ▪ A chest X-ray is used to detect malfunctions within heart and lung physiology. ▪ The client will remove jewelry from neck and chest and female clients will wear a lead apron. • Diagnostic Procedures o Angiogram (Cardiac Catheterization) ▪ An angiography is used to evaluate specific areas of the arterial system by injecting a dye through a catheter (via the groin or arm) that makes coronary arteries visible on an X-ray. ▪ An angiogram is performed with the use of local anesthesia and intravenous sedation and takes approximately 20-30 minutes. ▪ If a blockage is found during the procedure, the surgeon may perform a percutaneous coronary intervention (PCI) to open the blockage. ▪ The client will need to sign a consent form, and then empty their bladder prior to the test. ▪ The nurse will assess pulse rate and explain to the client that some people feel heat, palpitations or like they need to cough when the dye is injected. ▪ Clients who have the catheter inserted in their groin will have a compression bandage on the site and must lie flat on their back for several hours post-procedure. ▪ The nurse will assess for a hematoma, distal pulses and vital signs frequently post-test. ▪ The nurse will also compare the client's skin temperature, color and sensation in both extremities and notify the provider if bleeding or vital signs change. Check your organization's policy on post-cardiac catheterization orders. • Persons with diabetes and/or impaired kidney function are at high risk for developing contrast media-induced nephrotoxicity (CIN). Adequate hydration helps maintain renal blood flow and reduces the time the contrast media is in contact with the renal tubules and, therefore, will help prevent CIN. Serum creatinine levels are used to monitor for the development of CIN. Nephrotoxic drugs, such as ibuprofen, should not be used for procedures requiring contrast media. The oral hypoglycemic drug metformin increases the risk of lactic acidosis if CIN were to occur; it should be held the day of the procedure until kidney function returns to baseline (as determined by serum creatinine). o Electrocardiogram (ECG) ▪ A 12-lead ECG takes about 10 minutes to perform at the bedside. ▪ With each beat, an electrical impulse travel through the heart. ▪ The P-wave is the impulse of the atria, followed by a flat line when the electrical impulse goes to the bottom of the chambers. The QRS complex is the impulse of the ventricles and the T-wave represents the electrical recovery or return to a resting state for the ventricles. o Ultrasound Echocardiogram ▪ Non-invasive sound waves are used to diagnose and monitor heart failure, differentiating between systolic and diastolic heart failure. o Exercise Cardiac Stress Test (ECST) ▪ An ECST is used to assess the cardiovascular response to increased workload. ▪ It measures how heart and blood vessels respond to exertion. ▪ The client may walk on a treadmill or pedal a stationary bicycle with continuous ECG monitoring. o Radionuclide Stress Testing (Nuclear Stress Test) ▪ During this test, a radioactive isotope (typically thallium or cardiolite) is injected into the client and nuclear images of the client's heart are taken, first during rest and then following exercise. ▪ A blockage in a coronary artery results in diminished blood flow, which shows up as a "cold" spot on the scan. o Hemodynamic Monitoring ▪ Hemodynamic monitoring uses an invasive balloon-tipped, flow-directed cardiac catheter to provide continuous monitoring. ▪ Readings reflect left ventricular end diastolic pressure. ▪ Complications include • pneumothorax, dysrhythmias, infection, sepsis and thrombophlebitis. ▪ The nurse will monitor pressures, assess and change dressings and maintain patency with the fluids. Strict asepsis and standard precautions are required. o radiofrequency catheter ablation ▪ Clients with AF who are unresponsive to antiarrhythmics or electrical cardioversion can be treated by radiofrequency catheter ablation. The procedure, which is usually performed under conscious sedation, destroys any abnormal pacemaker cells so that erratic electrical signals are normalized. Sometimes more than one ablation is needed. After an ablation, the client will need to continue taking an anticoagulant and even antiarrhythmic medication. Diagnostic Tests Diagnostic Tests - Urinary Urinary diagnostic tests are separated into the categories of: • Normal Values Category Normal Values Negative Acetone Category Normal Values None or less than 1000/mL Bacteria Category Normal Values None Bilirubin Category Normal Values None to few (Granular) Casts Category Normal Values 110-250 mEq/24 hour Chloride Category Normal Values Color Pale yellow Normal Values Men: 90-140 mL/min Women: 85-125 mL/min Category Creatinine clearance Category Normal Values None Crystals Category Normal Values Less than 0.5 grams/day Glucose Category Normal Values None/negative Ketones Category Normal Values 7.4-12.2 HPF Magnesium Category Normal Values Specific aromatic odor, similar to ammonia Odor Category Normal Values 500-800 mOsm/L Osmolality Category Normal Values 4.5-7.8 pH Category Normal Values Negative Phenylketonuria Category Normal Values 25-125 mEq/24 hour Potassium Category Normal Values Negative Protein Category Normal Values Less than 33 cells/high-powered field Red Blood Cells Category Normal Values 40-220 mEq/24 hour Sodium Category Normal Values Specific Gravity 1.016-1.022 Category Normal Values Less than or equal to 4 cells/high-powered field White Blood Cells Category Normal Values 3-7 mg/dL (or 250-750 mg/24 hour) Uric Acid Category Normal Values 0.5-1 mg/dL Urobilinogen • Laboratory Tests o Urine Culture & Sensitivity ▪ Used to identify bacteria in the urine. The client will cleanse their external meatus and provide a midstream specimen. ▪ Normal levels are less than 100,000 colonies/mL. o Creatinine Clearance (CC) ▪ CC is used to evaluate renal function. ▪ A 24-hour urine collection and a blood draw for a creatinine level at the end of the urine collection. ▪ Normal levels are between 1.42-2.08 mL/min. o Blood Urea Nitrogen (BUN) ▪ The BUN is also collected to evaluate renal function. Values are affected by the client's protein intake, tissue breakdown and fluid volume changes. ▪ Normal levels are between 10-20 mg/dL (3.6-7.1 mmol/L). o Schilling Test ▪ A Schilling test is used to diagnose vitamin B12 deficiency (pernicious anemia). ▪ A radioactive vitamin B12 is administered to the client. • A low value excreted in the urine indicates pernicious anemia. ▪ Normal is greater than 10% of the dose excreted in 24 hours. • Scans and X-Rays o Renal Scan ▪ A renal scan is an evaluation of the kidneys. ▪ A radioactive isotope is injected via an IV and the radioactivity is measured by a radioactivity counter. T ▪ The nurse must help the client force fluids prior to the test. o Ultrasound ▪ An ultrasound can provide images of the renal structures via sound waves. ▪ It is a non-invasive exam. ▪ The client must have a full bladder during the test. ▪ An ultrasound can provide images of structures in all of the body's systems. • Diagnostic Procedures o Cystometrogram ▪ Used to test the muscle tone of the bladder. ▪ The nurse will insert a Foley catheter. Let your client know that they will feel pressure during the test when saline is instilled into the bladder. o Cystoscopy ▪ A cystoscopy provides direct visualization of the bladder and urethra. ▪ There is a bowel preparation the client must complete prior to the test. ▪ Before the test is administered, the nurse will encourage the client to be NPO if a general anesthetic is going to be used. • The nurse will teach the client to breathe deeply during times of discomfort. ▪ Post-test, the nurse will monitor the character and volume of the urine and check for abdominal distention, urinary frequency and fever. • Urine is typically pink in color after the exam. • If the client experiences abdominal or pelvic pain post exam, it may indicate trauma. • The nurse will also provide antimicrobial prophylaxis as ordered. o Cystourethrogram ▪ A cystourethrogram is an X-ray or the bladder and urethra. ▪ A catheter will be inserted into the urethra and a radiopaque dye will be injected. • The client will then void and X-rays will be taken. o Intravenous Pyelogram (IVP) ▪ This test provides an X-ray visualization of the kidneys, ureters and bladder. ▪ A bowel preparation is required, and the client will be NPO after midnight. ▪ Assess client for iodine sensitivity to avoid an anaphylactic reaction. ▪ During the injection of the radiopaque dye into the vein, the client may experience burning in the vein or a salty taste in their mouth, which is normal. • X-rays are taken at intervals after the dye is injected. ▪ X-rays are typically taken after the test as well. The client should be aware of and report any signs of a dye reaction, which include edema, itching, wheezing and SOB. o Kidney Biopsy ▪ In a kidney biopsy, tissue is obtained via a needle aspiration. ▪ The client must be NPO 6-8 hours prior to the biopsy. ▪ An X-ray is taken before the procedure and the skin is marked to indicate the lower pole of the kidney. Diagnostic Tests ▪ The client will be in the prone position. • Instruct clients to hold their breath during the needle insertion. ▪ Pressure will be applied to the site for 20 minutes and the client will be kept on the affected side for 30-60 minutes. ▪ A pressure dressing will be applied and vital signs will need to be checked every 15 minutes for the first hour. ▪ The nurse will observe for hematuria and site bleeding. ▪ The client will be on bedrest for 6-8 hours and kept flat in the bed. The client's intake should be increased as well. Diagnostic Tests - Gastrointestinal Gastrointestinal diagnostic tests are separated into the categories of: • Laboratory Tests o Alpha-fetoprotein (AFP) Tumor Markers ▪ Used to diagnose and monitor therapy for some cancers of the liver. ▪ This is a simple blood test and no special client preparation is needed. o Amylase ▪ Amylase is typically ordered with a lipase test to help diagnose and monitor acute chronic pancreatitis. ▪ The client will restrict food for 1-2 hours before the test and avoid opiates for two hours before the test. • Normal value is 23-85 u/dL. o Ammonia ▪ Ammonia levels are used primarily to investigate the cause of changes in behavior and altered levels of consciousness due to severe liver disease and used to support a diagnosis of Reye's syndrome. ▪ Instruct your client to refrain from smoking for several days prior to the collection of the sample. • Normal value is 15-45 mcg/dL (11-32 mcmol/L). o Bilirubin ▪ A bilirubin level is used to detect the presence of bilirubin due to hemolytic or liver disease. ▪ The test is a simple blood draw and no client preparation is needed. ▪ For infants, the nurse will perform a heel stick. o Fecal Occult Blood (also known as Guaiac Smear Test) ▪ Fecal occult blood (also known as a Guaiac smear test) is used to screen for lower GI bleeding, which may indicate colon cancer. ▪ This test is part of routine examination to begin at age 50, unless family history of colon cancer exists. • Usually the test involves taking samples of three different stool samples on three different days. ▪ Leading up to the test, clients should avoid • eating red meat (w/n 3 days • turnips, cauliflower, broccoli, bananas, cantaloupe, beets, drinking alcohol • taking NSAIDs (ibuprofen/naproxene) • corticosteroids (can cause gastric irritation, including peptic ulcer) • taking vitamin C. ▪ Females should not collect a stool sample during their menstrual period. Instruct her to wait until after her period has stopped. o Lipase ▪ Lipase levels are used to diagnose acute and chronic pancreatitis, biliary obstruction, hepatitis and cirrhosis. It is usually ordered with serum amylase. • Normal value is 0-160 U/L. o Liver Enzyme Tests Standard liver enzyme tests include: ▪ Serum albumin levels are used to detect protein malnutrition. • Normal levels are between 3.5-5.5 g/dL. ▪ Alanine transaminase (ALT) will increase with liver disease/hepatitis. • Normal levels are between 10-40 units. ▪ Aspartate aminotransferase (AST) will increase with liver disease/hepatitis. • Normal levels are between 10-40 units. ▪ Alkaline phosphatase evaluates liver and bone function. • The client should be NPO (nothing by mouth) for 8-12 hours prior to the test. • A list of client medications should be sent to the lab with the sample. o Normal values are 0-120 units and 104 FU/L in children and adolescents. o Prothrombin Time (PT) ▪ PT, also known as pro time or international normalized ratio, is used to determine how well anticoagulants are working and to diagnosis bleeding disorders. ▪ A client's PT may be prolonged in hepatic disease. • Normal PT is 9.5-12.0 seconds. • The specimen will be put on ice and pressure applied to the site for five minutes, or fifteen minutes if the client is on anticoagulant. o Partial Thromboplastin Time ▪ PTT is used to investigate a bleeding or thrombotic episode. ▪ It monitors the effectiveness of heparin therapy and detects coagulation disorders. ▪ In liver disease, PTT is prolonged due to lack of vitamin K. o Stool Cultures ▪ Stool cultures are primarily used to identify pathogenic bacteria in the GI tract, e.g., salmonella, shigella, campylobacter, E. coli 0157:H7, usually when there is prolonged or severe diarrhea. ▪ Stool cultures can also be used to check for white blood cells (WBC) and toxins. ▪ Instruct your clients that a fresh stool sample is needed, and to be careful not to contaminate the sample(s) with urine or menses. o Ova & Parasite ▪ The ova and parasite test is used to determine if a stool sample contains parasites or ova that are associated with intestinal infections, e.g., amebiasis, giardiasis. o Qualitative Fecal Fat Test ▪ A qualitative fecal fat test checks for poor absorption of nutrients by the digestive tract (also known as malabsorption syndrome). ▪ Stool is collected over a 72-hour period and checked for fat and meat fibers. ▪ For one to two weeks prior to the test, clients may need to stop taking medications such as antacids, antidiarrheal medications, anti-parasite medications, antibiotics, enemas, laxatives or NSAIDs. • Scans and X-rays o Liver Scan ▪ A liver scan is used to evaluate the size and shape of the liver. ▪ The scan is also a way to visualize scar tissue, cysts or tumors. • A radiopaque dye is also used during the exam. ▪ Be sure to ask your client about allergies and previous iodine sensitivity prior to the administration of the radiopaque dye. ▪ The client must be monitored for anaphylaxis. • An aqueous-based dye is available for clients who are hypersensitive. o Splenoportogram ▪ This test is used to determine the adequacy of the portal blood flow and also uses a contrast media of organic iodine. ▪ Assess the client for allergies and previous iodine sensitivity to avoid possible allergic reactions. • Diagnostic Procedures o Gastric Aspirate ▪ Gastric aspirate is used to evaluate the presence of blood, abnormal bacterial, pH or malignant cells. ▪ The client is NPO before the test. ▪ A nasogastric (NG) tube is inserted and the client's stomach contents are aspirated out. ▪ Histamine can sometimes be given to stimulate hydrochloric acid secretions. • The nurse will encourage fluids post-test. o Upper GI Series (Barium Swallow) ▪ Clients will ingest barium sulfate to determine patency and size of esophagus, size and condition of gastric walls and patency of pyloric valve. ▪ This test also can determine the rate passage to small bowel. ▪ The nurse will encourage clients to drink fluids and provide laxatives to prevent constipation. • Explain to clients that their stool will be white from the barium. o Lower GI Series (Barium Enema) ▪ Barium is instilled into the colon via the rectum for fluoroscopy X-rays to view for tumors, polyps, strictures, ulcerations, inflammation or obstruction of the colon. ▪ The client must stay on a low-residue diet for 1-2 days prior to the test. ▪ The client will be on a clear liquid diet and take a laxative the evening before the test. ▪ The client will use a cleansing enema until they are clear the morning of the test. ▪ The nurse will administer cleansing enemas after the exam to remove barium and prevent impaction. • X-rays may be repeated after all the barium has left the body. o Paracentesis ▪ A paracentesis is a needle aspiration of fluid from the abdominal cavity used for diagnostic examination of the ascetic fluid and the treatment of ascites. ▪ This procedure is done at the bedside. ▪ The client will be in a semi-Fowler's position. ▪ Tell the client to empty the bladder prior to the procedure to avoid an accidental perforation. o Endoscope ▪ Prior to the endoscopy, the nurse will verify that clients have signed the informed consent form and has been NPO for at least eight hours. ▪ The nurse will let clients know they may experience throat numbness afterwards, due to the anesthetic spray or the gargle they will do before the procedure. ▪ The nurse will monitor clients post-procedure for vobmiting of blood or respiratory distress. ▪ Clients will remain NPO until the nurse is able to verify a gag reflex. ▪ Clients can expect to have an irritated throat for a few days post- procedure. o Cholecystogram & Cholangiography ▪ These exams are conducted to visualize the gallbladder and bile duct. ▪ A radiopaque material is injected directly into the biliary tree. ▪ Advise your client to refrain from fatty foods the night before the test. ▪ The dye is in a tablet form and should be ingested the evening before (assess client allergies first). • The client will be NPO after the tablet is taken. o Liver Biopsy ▪ A sample is taken via a needle aspiration. ▪ The client must be NPO for at least six hours prior to the test. ▪ Prior to the biopsy, vitamin K will be administered intramuscularly (IM) to decrease the chance of hemorrhage. ▪ A sedative is also administered prior to the biopsy. ▪ Clients will be in a supine position, lateral with arms elevated. Clients will be asked to hold their breath for 5-10 seconds while the biopsy is being obtained. ▪ Clients will be positioned on their right side for three hours post-test. ▪ It is a priority to check vital signs frequently to evaluate for hemorrhage and shock. ▪ Clients should expect mild local pain that may radiate to the right shoulder. ▪ Clients should report any abdominal pain immediately (may indicate a perforation) and avoid heavy lifting for at least one week. o Celiac Axis Arteriography ▪ Used for liver and pancreas visualization. ▪ This test uses a contrast media of organic iodine, so evaluate the client's allergies and sensitivity to iodine. ▪ Anaphylaxis during this test is common. Diagnostic Tests Diagnostic Tests - Respiratory The following section is about respiratory diagnostic tests. The tests are separated into the categories