A nurse is assisting with teaching a class about pharmacodynamics. The nurse should include that which of the following medication levels occurs when a medication is at the lowest serum concentration?

Half-life

Peak

Trough

Тохіс

Answer and Explanation

The Correct Answer is C

A. Half-life refers to the time it takes for the concentration of the medication in the bloodstream to decrease by half, not the lowest serum concentration.
B. Peak refers to the highest concentration of the medication in the bloodstream after administration.
C. Trough is the lowest concentration of medication in the bloodstream, typically measured just before the next dose is due to ensure adequate drug levels.
D. Toxic level refers to a concentration at which the medication may cause adverse effects, not the lowest serum concentration.

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Correct Answer is B

Explanation

A. The therapeutic effect of Benadryl is to relieve allergy symptoms, not cause drowsiness.
B. Drowsiness is a common side effect of Benadryl, as it is an antihistamine that can cause sedation.
C. Toxic effects refer to harmful effects due to excessive dosing, not typical side effects at therapeutic doses.
D. An allergic reaction would involve symptoms such as rash, itching, or swelling, not drowsiness.

A. DNR B. Tx C. NG D. Ac

Correct Answer is D

Explanation

A. "DNR" stands for "Do Not Resuscitate" and is unrelated to medication timing.
B. "Tx" stands for "treatment" and does not indicate medication timing.
C. "NG" stands for "nasogastric" and is related to the route of administration.
D. "Ac" stands for "ante cibum," which means before meals, and is used to indicate medication timing relative to meals.

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A nurse is assisting with teaching a class about pharmacodynamics. The nurse should include that which of the following medication levels occurs when a medication is at the lowest serum concentration?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is D

Explanation

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