The nurse is conducting medication education about the difference between potency and efficacy to a group of patients. The nurse correctly determines that learning has occurred when the patients makes which response?
1. "The best drug for us is the one with the highest potency."
2. "The best drug for us is the one with the greatest efficacy."
3. "Drugs with the greatest efficacy will produce the least side effects."
4. "Low potency drugs have efficacy and do not produce side effects."
Correct Answer: 2
Rationale: Efficacy means the magnitude of maximal response that can be produced from a particular drug. Potency refers to the dose of the drug; high-potency drugs do not necessarily provide the best response in the patient. Efficacious drugs and low-potency drugs do produce side effects.
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