NCLEX-PN
NCLEX PN Exam Cram
1. A nurse is weighing a breastfed 6-month-old infant who has been brought to the pediatrician's office for a scheduled visit. The infant's weight at birth was 6 lb 8 oz. The nurse notes that the infant now weighs 13 lb. What action should the nurse take?
- A. Tell the mother to decrease the daily number of feedings because the weight gain is excessive.
- B. Tell the mother that the infant's weight is increasing as expected.
- C. Tell the mother that the infant should continue with breast milk as the weight gain is adequate.
- D. Tell the mother that semisolid foods should not be introduced until the infant's weight stabilizes.
Correct answer: B
Rationale: The correct answer is to inform the mother that the infant's weight gain is normal. Infants typically double their birth weight by 6 months, which is precisely the case here, with the infant's weight increasing from 6 lb 8 oz to 13 lb. This weight gain indicates healthy growth and development. Therefore, there is no need to decrease feedings. The infant should continue with breast milk as it is providing adequate nutrition. Additionally, introducing semisolid foods is usually recommended between 4 and 6 months of age, so there is no indication to delay based on the infant's weight gain.
2. Which medication should the nurse withhold if the client's blood pressure is 88/50?
- A. Rosuvastatin (Crestor)
- B. Enalapril (Vasotec)
- C. Digoxin (Lanoxin)
- D. Clopidogrel (Plavix)
Correct answer: B
Rationale: Enalapril (Vasotec) is the correct answer. It is an angiotensin-converting enzyme (ACE) inhibitor that can further lower blood pressure. Given that the client's blood pressure is already low at 88/50, administering Enalapril could exacerbate hypotension and compromise perfusion to vital organs. Rosuvastatin (Crestor), Digoxin (Lanoxin), and Clopidogrel (Plavix) are not contraindicated in the context of low blood pressure and may be administered safely.
3. Which of the following arterial blood gas values indicates a patient may be experiencing a condition of metabolic acidosis?
- A. PaO2 90 mm Hg
- B. Bicarbonate 15 mEq/L
- C. CO2 47 mm Hg
- D. pH 7.34
Correct answer: B
Rationale: The correct answer is B: Bicarbonate 15 mEq/L. In metabolic acidosis, the bicarbonate levels are lower than normal. A bicarbonate value of 15 mEq/L indicates a deficit in the buffer system, contributing to the acidosis. Choices A, C, and D are incorrect. Choice A, PaO2 90 mm Hg, reflects oxygen partial pressure and is not directly related to metabolic acidosis. Choice C, CO2 47 mm Hg, represents carbon dioxide levels and is more indicative of respiratory status. Choice D, pH 7.34, falls within the normal range (7.35-7.45) and does not confirm metabolic acidosis.
4. A child presents to the school nurse with left knee pain after suffering a fall on the playground. Which action should the nurse do first?
- A. Instruct the child to extend the affected knee
- B. Perform range of motion exercises on both knees
- C. Compare the appearance of the left knee to the right knee
- D. Have the child soak the affected knee in warm water
Correct answer: C
Rationale: Comparing the appearance of the left knee to the right knee is the most appropriate initial action as it provides a baseline for assessing any visible differences such as swelling, bruising, or deformities. This comparison helps the nurse identify any acute changes in the affected knee's appearance after the fall. Instructing the child to extend the affected knee (Choice A) may worsen the pain or cause further injury. Performing range of motion exercises on both knees (Choice B) could exacerbate the pain and should be avoided until a proper assessment is done. Having the child soak the affected knee in warm water (Choice D) is not the priority at this stage as assessing for any physical changes is more crucial.
5. When teaching bleeding precautions to a client with leukemia, the PN should include which of the following instructions?
- A. Use a soft toothbrush.
- B. Use dental floss daily.
- C. Hold pressure on any scrapes for 1-2 minutes.
- D. Use a triple-edged razor.
Correct answer: A
Rationale: The correct answer is to 'Use a soft toothbrush.' A soft toothbrush is recommended because it is less likely to cause the gums to bleed in clients with leukemia, who are at risk of bleeding due to overcrowding of white cells at the expense of other cell types like platelets. Choice B, 'Use dental floss daily,' is incorrect because dental floss is contraindicated and can make the gums bleed in clients with leukemia. Choice C, 'Hold pressure on any scrapes for 1-2 minutes,' is incorrect because when clotting is impaired, pressure should be held for 5-10 minutes or longer until the bleeding stops. Choice D, 'Use a triple-edged razor,' is incorrect because an electric razor should be used instead of a triple-edged razor to prevent small cuts and bleeding in clients with leukemia.
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