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NCLEX PN Practice Test Questions

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Question 1 of 5

A client is receiving IV potassium. The IV pump displays an occlusion alarm. The tubing is free of occlusions, and the IV flushes easily without symptoms of infiltration. Which action should the nurse take next?

Correct Answer: B

Rationale: An occlusion alarm with patent tubing suggests a pump malfunction. Exchanging the pump (
B) ensures safe delivery. Discarding (
A) is unnecessary, a new catheter (
C) is not indicated, and gravity drip (
D) risks rapid infusion.

Question 2 of 5

An adult is prescribed lovastatin (Mevacor). The nurse should teach the client that while he is taking lovastatin (Mevacor), he must avoid:

Correct Answer: B

Rationale: Grapefruit juice inhibits CYP3A4, increasing lovastatin levels and risking toxicity, such as myopathy. Apples, aspirin, and ibuprofen do not have significant interactions with lovastatin.

Question 3 of 5

A client diagnosed with endometrial cancer is receiving brachytherapy. Which interventions should the nurse anticipate for this client? Select all that apply.

Correct Answer: A,C,D,E

Rationale: Brachytherapy involves internal radiation, requiring precautions to minimize exposure. Clustering care (
A) reduces staff exposure time. Limiting visitor contact (
C) protects others from radiation. Protective shielding (
D) and radiation badges (E) ensure safety and monitor exposure. Ambulation (
B) is restricted to prevent dislodging the radiation source.

Question 4 of 5

The doctor has ordered Nitrostat (nitroglycerine) sublingually for a client with angina. The client should be ordered to replenish his supply every:

Correct Answer: A

Rationale: Nitroglycerin loses potency after 6 months, requiring replacement to ensure efficacy for angina relief.

Question 5 of 5

The nurse is caring for a client with hepatic encephalopathy who is receiving lactulose. Which of the following findings would indicate that the medication has been effective?

Correct Answer: A

Rationale: Lactulose is used in hepatic encephalopathy to reduce ammonia levels by promoting its excretion through the stool. Improved mental status (
A) indicates reduced ammonia toxicity, directly reflecting the medication's therapeutic effect. Looser stools (
B) and reduced abdominal distension (
C) are expected effects of lactulose but are secondary to the primary goal of ammonia reduction. Increased serum potassium (
D) is incorrect, as lactulose does not directly affect potassium levels.

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