A nurse is reviewing the lab work of a client on a medical-surgical unit who has a new prescription for captopril. Which of the following laboratory values should the nurse identify as the priority to monitor?

Alanine aminotransferase

Thyroid-stimulating hormone

Potassium

Magnesium

Answer and Explanation

The Correct Answer is C

A. Monitoring alanine aminotransferase is important for liver function, but it is not the priority for a client on captopril.

B. Thyroid-stimulating hormone is not directly impacted by captopril and is not the priority lab value to monitor in this context.

C. Potassium is the priority laboratory value to monitor because captopril, an ACE inhibitor, can lead to hyperkalemia (elevated potassium levels), which can cause serious cardiac complications.

D. While magnesium levels are important to monitor, they are not specifically related to captopril therapy as potassium levels are.

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Correct Answer is B

Explanation

A. Brimonidine should not be instilled while wearing contact lenses; the client should remove them and wait at least 15 minutes before reinsertion.
B. Mild eye irritation, stinging, or burning is a common side effect of brimonidine and is an expected finding.
C. Brimonidine is used as a long-term treatment for open-angle glaucoma; it is not discontinued after a short course like 3 weeks.
D. Brimonidine does not change eye color; this is an effect associated with prostaglandin analogs such as latanoprost.

A. Magnesium 2.5 mEq/L (1.3 to 2.1 mEq/L) B. Potassium 5.4 mEq/L (3.5 to 5 mEq/L) C. WBC 2,500/mm³ (5,000 to 10,000/mm³) D. Sodium 134 mEq/L (136 to 145 mEq/L)

Correct Answer is C

Explanation

A. Magnesium 2.5 mEq/L: A magnesium level slightly above the normal range does not indicate an immediate need to discontinue clozapine, as this level is not related to the adverse effects of the drug.

B. Potassium 5.4 mEq/L: While elevated potassium levels can pose a health risk, this is not a direct indicator to discontinue clozapine. Potassium levels can be managed with other interventions.

C. WBC 2,500/mm³: Clozapine carries a risk of agranulocytosis, a condition where the white blood cell (WBC) count becomes dangerously low, leading to severe infection risk. A WBC count of 2,500/mm³ is below the normal range and indicates the need to discontinue clozapine immediately.

D. Sodium 134 mEq/L: A slightly low sodium level is not typically related to clozapine use and does not warrant discontinuation of the medication.

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A nurse is reviewing the lab work of a client on a medical-surgical unit who has a new prescription for captopril. Which of the following laboratory values should the nurse identify as the priority to monitor?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is teaching a client who has a new prescription for brimonidine to treat open-angle glaucoma. Which of the following client statements indicates an understanding of the teaching?

Correct Answer is B

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Correct Answer is C

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