NURS 3100 Exam 1 Practice 2026 – All-in-One Guide to Master Your Nursing Exam Success!

The nurse explains the difference between potency and efficacy to a group of patients. Which response indicates correct understanding?

Drugs with the greatest efficacy will produce the least side effects

Low-potency drugs have efficacy and do not produce side effects

The best drug for us is the one with the greatest efficacy

The correct understanding is reflected in option C. Efficacy refers to the maximum effect a drug can produce, regardless of the dose. Therefore, the best drug for an individual is the one with the greatest efficacy because it will be most effective in producing the desired therapeutic effect. Potency, on the other hand, refers to the amount of drug needed to produce a certain effect and does not necessarily correlate with efficacy. This is why options A, B, and D are incorrect because they do not accurately describe the concepts of potency and efficacy.

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The best drug for us is the one with the highest potency