Difficulty: Medium
Average Score: 81%
Simulated
A client who is taking an oral contraceptive receives a new prescription for erythromycin. Which instruction should the nurse provide to the client?
Correct answer
C
Rationale
Erythromycin may reduce oral contraceptive efficacy by altering metabolism. Using additional contraception (e.g., condoms) prevents unintended pregnancy. Stopping the contraceptive, spacing doses, or avoiding sunlight are not necessary.