NCLEX-RN
NCLEX RN Exam Review Answers
1. The child with hemolytic-uremic syndrome is anuric and will undergo peritoneal dialysis. Which measure should the nurse implement?
- A. Restrict fluids as prescribed.
- B. Care for the arteriovenous fistula.
- C. Encourage foods high in potassium.
- D. Administer analgesics as prescribed.
Correct answer: A
Rationale: In hemolytic-uremic syndrome, often associated with bacterial toxins and viruses, acute kidney injury occurs in children, leading to symptoms like anemia, thrombocytopenia, renal injury, and CNS symptoms. For an anuric child with hemolytic-uremic syndrome undergoing peritoneal dialysis, fluid restriction is vital to prevent fluid overload. Pain management is not directly related to hemolytic-uremic syndrome. Foods high in potassium should be limited, not encouraged, due to impaired kidney function. Peritoneal dialysis does not involve an arteriovenous fistula, which is specific to hemodialysis.
2. A patient asks a nurse, "My doctor recommended I increase my intake of folic acid. What type of foods contain the highest concentration of folic acid?'
- A. Green vegetables and liver
- B. Yellow vegetables and red meat
- C. Carrots
- D. Milk
Correct answer: A
Rationale: Green vegetables and liver are rich sources of folic acid. Green vegetables like spinach, asparagus, and broccoli are high in folic acid content. Liver, especially from chicken or beef, is also a good source of folic acid. Yellow vegetables and red meat (choice B) do not contain as high a concentration of folic acid as green vegetables and liver. Carrots (choice C) are nutritious but do not have the highest concentration of folic acid. Milk (choice D) is not a significant source of folic acid compared to green vegetables and liver.
3. A female patient with atrial fibrillation has the following lab results: Hemoglobin of 11 g/dl, a platelet count of 150,000, an INR of 2.5, and potassium of 2.7 mEq/L. Which result is critical and should be reported to the physician immediately?
- A. Hemoglobin of 11 g/dl
- B. Platelet count of 150,000
- C. INR of 2.5
- D. Potassium of 2.7 mEq/L
Correct answer: D
Rationale: The critical lab result that should be reported to the physician immediately in this case is the potassium level of 2.7 mEq/L. A potassium imbalance, especially in a patient with a history of dysrhythmia like atrial fibrillation, can be life-threatening and lead to cardiac distress. Low potassium levels (hypokalemia) can predispose the patient to dangerous arrhythmias, including worsening atrial fibrillation. Hemoglobin of 11 g/dl, platelet count of 150,000, and an INR of 2.5 are within acceptable ranges and not as immediately concerning as a low potassium level in this clinical context.
4. The clinic nurse is assessing jaundice in a child with hepatitis. Which anatomical area would provide the best data regarding the presence of jaundice?
- A. The nail beds.
- B. The skin in the sacral area.
- C. The skin in the abdominal area.
- D. The membranes in the ear canal.
Correct answer: A
Rationale: Jaundice, if present, can be best assessed in areas such as the sclera, nail beds, and mucous membranes due to the yellowing of these tissues. The nail beds specifically provide a good indication of jaundice. The skin in the sacral area (Option B) is not typically the best area for assessing jaundice as it is less visible and not as reliable as the nail beds. The skin in the abdominal area (Option C) may show generalized jaundice, but the nail beds are more specific for detecting early signs. Lastly, assessing the membranes in the ear canal (Option D) is not a standard method for evaluating jaundice; the sclera and nail beds are more commonly used for this purpose.
5. A newborn is having difficulty maintaining a temperature above 98 degrees Fahrenheit and has been placed in a warming isolette. Which action is a nursing priority?
- A. Protect the neonate's eyes from the heat lamp
- B. Monitor the neonate's temperature
- C. Warm all medications and liquids before administration
- D. Avoid touching the neonate with cold hands
Correct answer: B
Rationale: When a newborn is placed in a warming isolette due to difficulty maintaining temperature, the priority action is to continuously monitor the neonate's temperature to prevent overheating. Using heat lamps is unsafe as their temperature cannot be regulated, potentially causing harm. Warming medications and fluids before administration is not necessary in this situation. While touching the neonate with cold hands may startle them, it does not pose a safety risk compared to monitoring and controlling the temperature.
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