Free NCLEX RN Questions for Med Surg Related

Review Free NCLEX RN Questions for Med Surg related questions and content

The nurse should caution sexually active female clients taking isoniazid (INH) that the drug has which of the following effects?

  • A. Increases the risk of vaginal infection.
  • B. Has mutagenic effects on ova.
  • C. Decreases the effectiveness of hormonal contraceptives.
  • D. Inhibits ovulation.
Correct Answer: C

Rationale: Isoniazid induces liver enzymes, potentially reducing the effectiveness of hormonal contraceptives. It does not increase vaginal infection risk, affect ova, or inhibit ovulation.