A nurse is preparing to report laboratory results to the provider for a client who is taking clozapine. For which of the following findings does the nurse anticipate a prescription to discontinue clozapine?

Magnesium 2.5 mEq/L (1.3 to 2.1 mEq/L)

Potassium 5.4 mEq/L (3.5 to 5 mEq/L)

WBC 2,500/mm³ (5,000 to 10,000/mm³)

Sodium 134 mEq/L (136 to 145 mEq/L)

Answer and Explanation

The Correct Answer is C

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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Free Nursing Study Resources

Correct Answer is B

Explanation

A. "Remove the patch for two to four hours daily.": This is incorrect because transdermal nitroglycerin patches should be worn continuously for 24 hours, with a scheduled time to remove them (usually overnight) to prevent tolerance.

B. "Apply a new patch each day after waking up.": This instruction is correct; clients should apply a new patch daily to ensure continuous therapeutic effects while also allowing a break to reduce tolerance.

C. "Cover the patch with plastic wrap.": This is incorrect; covering the patch with plastic wrap can alter the absorption of the medication and is not necessary.

D. "Replace the existing patch with a new patch as soon as anginal pain begins.": This is incorrect; clients should not replace the patch immediately for angina. Instead, they should use sublingual nitroglycerin for immediate relief and follow the prescribed patch schedule.

A. Nitrates B. Sulfa-based medications C. Mostly cloudy D. Antilipemic agents E. Proton pump inhibitors

Correct Answer is B

Explanation

A. Nitrates: Nitrates are primarily used to manage angina or heart conditions and are unrelated to acetazolamide or its potential for allergic reactions.

B. Sulfa-based medications: Acetazolamide is a carbonic anhydrase inhibitor that contains sulfonamide groups. Clients with a sulfa allergy may experience a cross-sensitivity reaction, so it's important to confirm any history of sulfa allergies before administration.

C. Mostly cloudy: This option does not relate to any medication classification and is incorrect.

D. Antilipemic agents: Antilipemics are used to lower cholesterol and are not related to acetazolamide or its potential for allergic reactions.

E. Proton pump inhibitors: Proton pump inhibitors are used to reduce stomach acid and do not have a known cross-sensitivity with acetazolamide.

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A nurse is preparing to report laboratory results to the provider for a client who is taking clozapine. For which of the following findings does the nurse anticipate a prescription to discontinue clozapine?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is providing teaching to a client who has a new prescription for transdermal nitroglycerin patches to treat angina pectoris. Which of the following instructions should the nurse include in the teaching?

Correct Answer is B

Explanation

A nurse is caring for a client who has open-angle glaucoma and a new prescription for acetazolamide. Prior to administering the first dose, the nurse should ask the client if they have an allergy to which of the following medication classifications?

Correct Answer is B

Explanation

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