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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. While a respiratory infection might require medication, it does not inherently increase the risk of toxicity.
B. Hyperthyroidism affects metabolism but is not the most significant risk factor for medication toxicity compared to impaired renal function.
C. A client who requires dialysis has impaired kidney function, reducing the body's ability to excrete medications and increasing the risk of toxicity.
D. Back pain alone does not increase the risk of medication toxicity unless it involves medications that could cause toxicity.
Correct Answer is B
Explanation
A. A "now" prescription is for a medication to be given quickly but not immediately.
B. A routine prescription is for medication to be administered on a regular schedule, such as daily.
C. A single prescription is for a one-time administration.
D. A stat prescription is for immediate administration, usually in an emergency situation.
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