NCLEX-RN
NCLEX RN Exam Review Answers
1. Mr. C is brought to the hospital with severe burns over 45% of his body. His heart rate is 124 bpm and thready, BP 84/46, respirations 24/minute and shallow. He is apprehensive and restless. Which of the following types of shock is Mr. C at highest risk for?
- A. Septic shock
- B. Hypovolemic shock
- C. Neurogenic shock
- D. Cardiogenic shock
Correct answer: B
Rationale: Mr. C, who has severe burns over 45% of his body, is at highest risk for hypovolemic shock. Burns lead to a loss of plasma volume, reducing the circulating fluid volume and impairing perfusion to vital organs and extremities. In this scenario, the signs of shock, such as increased heart rate, low blood pressure, shallow respirations, and restlessness, indicate a state of hypovolemic shock due to significant fluid loss. Septic shock (choice A) is primarily caused by severe infections, neurogenic shock (choice C) results from spinal cord injuries, and cardiogenic shock (choice D) stems from heart failure. However, in this case, the presentation aligns most closely with hypovolemic shock due to the extensive burn injury and its effects on fluid volume and perfusion.
2. The healthcare provider is caring for a 20 lbs (9 kg) 6-month-old with a 3-day history of diarrhea, occasional vomiting, and fever. Peripheral intravenous therapy has been initiated, with 5% dextrose in 0.33% normal saline with 20 mEq of potassium per liter infusing at 35 ml/hr. Which finding should be reported to the healthcare provider immediately?
- A. 3 episodes of vomiting in 1 hour
- B. Periodic crying and irritability
- C. Vigorous sucking on a pacifier
- D. No measurable voiding in 4 hours
Correct answer: D
Rationale: The correct answer is 'No measurable voiding in 4 hours.' This finding should be reported to the healthcare provider immediately. The concern is the possibility of hyperkalemia, which could occur with continued potassium administration and a decrease in urinary output since potassium is excreted via the kidneys. It is crucial to monitor urinary output in pediatric patients receiving potassium-containing IV solutions to prevent electrolyte imbalances and potential complications. Choices A, B, and C are not the most critical findings that require immediate reporting. '3 episodes of vomiting in 1 hour' may suggest a need for antiemetic therapy or further assessment of the underlying cause but does not pose an immediate risk like the potential electrolyte imbalance from decreased urinary output. 'Periodic crying and irritability' and 'Vigorous sucking on a pacifier' are common behaviors in infants and are not indicative of a critical condition that requires urgent attention in this scenario.
3. Which client is at highest risk for developing a pressure ulcer?
- A. 23 year-old in traction for fractured femur
- B. 72 year-old with peripheral vascular disease, who is unable to walk without assistance
- C. 75 year-old with left sided paresthesia and is incontinent of urine and stool
- D. 30 year-old who is comatose following a ruptured aneurysm
Correct answer: C
Rationale: Risk factors for pressure ulcers include: immobility, absence of sensation, decreased LOC, poor nutrition and hydration, skin moisture, incontinence, increased age, decreased immune response. This client has the greatest number of risk factors.
4. Renal failure is broadly divided into specific categories. Which type is the type II diabetic patient most likely to experience secondary to diabetes?
- A. Acute renal failure (ARF)
- B. Intermittent renal failure (IRF)
- C. Chronic renal failure (CRF)
- D. Reversible renal failure (RRF)
Correct answer: C
Rationale: Diabetic nephropathy is a common complication in type II diabetic patients, leading to chronic renal failure (CRF). Chronic renal failure (CRF) and acute renal failure (ARF) are the two main categories of renal failure. CRF can result from various conditions including diabetic nephropathy, chronic glomerulonephritis, chronic pyelonephritis, polycystic kidney disease, connective tissue disorders, and amyloidosis. Unlike acute renal failure, chronic renal failure is irreversible. Timely treatment of ARF can often lead to reversibility, but CRF may require renal replacement therapy (RRT) or kidney transplant. Therefore, the correct answer is chronic renal failure (CRF). Intermittent renal failure (IRF) and reversible renal failure (RRF) are not recognized medical terms for distinct types of renal failure, making choices B and D incorrect.
5. After a bronchoscopy, what is the most appropriate intervention for a patient with a chronic cough?
- A. Elevate the head of the bed to 80 to 90 degrees.
- B. Keep the patient NPO until the gag reflex returns.
- C. Place the patient on bed rest for at least 4 hours after bronchoscopy.
- D. Notify the health care provider about blood-tinged mucus.
Correct answer: B
Rationale: The correct intervention is to keep the patient NPO until the gag reflex returns after a bronchoscopy. This is important because a local anesthetic is used during the procedure to suppress the gag and cough reflexes. Monitoring the return of these reflexes helps prevent the risk of aspiration and ensures the patient can safely resume oral intake. While blood-tinged mucus can occur after bronchoscopy, it is a common occurrence and not a cause for immediate concern. Placing the patient on bed rest for an extended period is unnecessary, and elevating the head of the bed to a high-Fowler's position is not specifically required post-bronchoscopy.
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