NCLEX-RN
NCLEX RN Exam Review Answers
1. A patient in the cardiac care unit is taking bumetanide (Bumex) for heart issues and is also diagnosed with Parkinson's Disease. An unlicensed assistive personnel is assisting with feeding the patient. Which of these foods should the nurse stress for the patient to eat most?
- A. Foods containing the least amount of salt
- B. Foods containing the most amount of potassium
- C. Foods containing the most amount of calories
- D. Foods containing the most amount of fiber
Correct answer: B
Rationale: Bumex is a loop diuretic that can lead to hypokalemia (low potassium levels). Hypokalemia can be dangerous and lead to various complications. To prevent a hypokalemic crisis, it is crucial to ensure an adequate intake of potassium. Therefore, the nurse should stress the patient to eat foods rich in potassium. Choices A, C, and D are not the priority in this situation. While monitoring salt intake is important in cardiac patients, the immediate concern with bumetanide use is the risk of hypokalemia, making choice B the most appropriate option.
2. Which of the following types of dressing changes works as a form of wound debridement?
- A. Dry dressing
- B. Transparent dressing
- C. Composite dressing
- D. Wet to dry dressing
Correct answer: D
Rationale: The correct answer is 'Wet to dry dressing.' Wet to dry dressing is a method of wound debridement that involves applying sterile soaked gauze to the wound, allowing it to dry and stick to the wound. When the dressing is removed, it pulls away drainage and debris, aiding in wound debridement. Choice A, 'Dry dressing,' does not actively assist in debridement as it does not collect or remove debris from the wound. Choice B, 'Transparent dressing,' is primarily used for maintaining a moist environment and wound observation, not for debridement. Choice C, 'Composite dressing,' combines multiple layers for different wound care purposes but is not specifically designed for debridement like wet to dry dressing.
3. A client is receiving digoxin (Lanoxin) 0.25 mg daily. The health care provider has written a new order to give metoprolol (Lopressor) 25 mg B.I.D. In assessing the client prior to administering the medications, which of the following should the nurse report immediately to the health care provider?
- A. Blood pressure 94/60 mm Hg
- B. Heart rate 76 bpm
- C. Urine output 50 ml/hour
- D. Respiratory rate 16 bpm
Correct answer: A
Rationale: The correct answer is 'Blood pressure 94/60 mm Hg.' Both digoxin and metoprolol decrease the heart rate. Metoprolol specifically affects blood pressure. Therefore, the heart rate and blood pressure need to be within normal range (HR 60-100 bpm; systolic BP above 100 mm Hg) to safely administer both medications. A blood pressure of 94/60 mm Hg indicates hypotension, which could be exacerbated by metoprolol, necessitating immediate reporting to the healthcare provider. Choices B, C, and D are within normal limits and do not pose immediate risks related to the administration of these medications.
4. A patient is admitted with active tuberculosis (TB). The nurse should question a healthcare provider's order to discontinue airborne precautions unless which assessment finding is documented?
- A. Chest x-ray shows no upper lobe infiltrates.
- B. TB medications have been taken for 6 months.
- C. Mantoux testing shows an induration of 10 mm.
- D. Three sputum smears for acid-fast bacilli are negative.
Correct answer: D
Rationale: The correct answer is D: Three sputum smears for acid-fast bacilli are negative. Negative sputum smears indicate that Mycobacterium tuberculosis is not present in the sputum, and the patient cannot transmit the bacteria by the airborne route. This finding is crucial for discontinuing airborne precautions. Choice A is incorrect because chest x-rays do not determine the presence of active TB for transmission precautions. Choice B is not directly related to the infectiousness of TB; completing a 6-month course of medication is important for treatment but does not confirm the absence of active disease or infectiousness. Choice C is not relevant to assessing infectiousness; Mantoux testing measures exposure to TB but does not confirm the absence of active infection or infectiousness.
5. What is the cause of meningitis that is fatal in half of the infected patients?
- A. Virus
- B. Bacteria
- C. Fungus
- D. Noninfectious agent
Correct answer: B
Rationale: Bacterial meningitis is caused by bacterial pathogens such as Streptococcus pneumoniae, Haemophilus influenzae, Listeria monocytogenes, and Neisseria meningitidis. These bacteria commonly lead to acute onset meningitis, presenting with symptoms like fever, stiff neck, and altered consciousness. The statement that bacterial meningitis is fatal in about 50% of cases is accurate, making it a serious and life-threatening condition. Viruses can also cause meningitis, but they are not typically associated with the high fatality rate seen in bacterial meningitis. Fungal meningitis is less common and usually affects individuals with weakened immune systems. Noninfectious agents do not cause meningitis.
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