CCRN test bank 3 Latest Update Actual Exam
125 Questions and 100% Verified Correct
Answers Questions & Answers, 100% Verified
Graded A+
Emergency decompression of a tension pneumothorax includes needle puncture at which of the following
locations?
A.
Fifth intercostal space at the midclavicular line on the affected side
B.
Second intercostal space at the midclavicular line on the affected side
C.
Second intercostal space at the midaxillary line on the affected side
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D.
Fifth intercostal space at the midaxillary line on the affected side
- Correct Answer :B. Second intercostal space at the midclavicular line on the affected side
A 52-year-old man is admitted with hepatic failure caused by chronic alcoholism. He is nonresponsive to verbal
stimuli at this time. Which dietary restrictions would be maintained for a patient with hepatic encephalopathy?
A.
Protein and sodium
B.
Fat and potassium
C.
Potassium and carbohydrates
D.
Sodium and potassium - Correct Answer :A. Protein and sodium
Protein is restricted because its breakdown causes increased ammonia levels. Sodium is restricted because
patients with hepatic disease have increased circulating levels of aldosterone, which causes increased sodium
reabsorption in the distal tubule and resultant edema.
A 24-year-old man is admitted to the critical care unit after sustaining a pulmonary contusion in a motor vehicle
collision. He has no history of cardiac or pulmonary disease. Over the last few hours, he has been complaining of
increasing dyspnea, his respiratory rate has been increasing, and his oxygen saturation via pulse oximetry has
been decreasing. Breath sound assessment reveals fine crackles bilaterally. Arterial blood gases reveal
respiratory alkalosis and hypoxemia. Chest x-ray film reveals patchy infiltrates. Acute respiratory distress
syndrome (ARDS) is diagnosed. Oxygen therapy is initiated, and arterial blood gases are monitored closely. The
massive atelectasis that occurs in acute respiratory distress syndrome is a classic example of intrapulmonary
shunt. Intrapulmonary shunting is best described as which of the following?
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A.
Ventilated alveoli having blocked perfusion.
B.
Perfused alveoli having bloc - Correct Answer :B. Perfused alveoli having blocked ventilation.
A patient admitted with Goodpasture syndrome has developed acute tubular necrosis. The patient's phosphorus
level is 6.5 mg/dl. Control of the phosphorus is important to avoid complications from which of the following?
A.
Hyponatremia
B.
Hypocalcemia
C.
Hypernatremia
D.
Hypercalcemia - Correct Answer :B. Hypocalcemia
Associate phosphorus and calcium with a seesaw. When one side of the seesaw is up, the other is down. This
process is consistent with normal and abnormal kidney function. Choose "Hypocalcemia." You do not really need
to know what Goodpasture syndrome is to answer the question correctly.
A 65-year-old man is admitted to the critical care unit with a diagnosis of septic shock. He has been receiving
chemotherapy for lung cancer. His skin is warm and dry, and he is restless. His white blood cell count is elevated
above normal. Hemoglobin, hematocrit, and red blood cell count are normal.
Vital signs are blood pressure 80/50 mm Hg, heart rate 120 beats/min and regular, respiratory rate 32 breaths/min
and regular, and temperature 39° C.
Arterial blood gases reveal the following:
pH7.25PaO260 mm HgPaCO225 mm HgHCO313 mEq/LOxygen saturation86%
What hemodynamic alteration should the nurse anticipate?
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A.
Decreased cardiac output (CO)
B.
Increased venous oxygen saturation (SvO2)
C.
Increased systemic vascular resistance (SVR)
D.
Increased oxygen consumption - Correct Answer :B. Increased venous oxygen saturation (SvO2)
Early septic shock is different from most forms of shock because the main problem is oxygen extraction rather
than oxygen delivery. So think opposite of hypovolemic shock. CO is increased instead of decreased. SVR is
decreased instead of increased. And the SvO2 is increased instead of decreased.
The primary result of carbon monoxide poisoning is:
A.
hypoxia.
B.
hypercapnia.
C.
hypertension.
D.
metabolic acidosis. - Correct Answer :A. hypoxia
A patient with myasthenia gravis develops hypoxemia with hypercapnia. What is the cause of hypoxemia in this
patient?
A.
Alveolar hypoventilation
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