Maternal Newborn Practice Questions Related

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A 30-year-old woman is considering the use of emergency contraception. Which of the following is true about its use?

  • A. It is most effective when used within 72 hours after unprotected sex.
  • B. It should be used at least 5 days after unprotected sex to be effective.
  • C. It prevents implantation of a fertilized egg into the uterine wall.
  • D. It requires a prescription from a healthcare provider.
Correct Answer: A

Rationale: Emergency contraception is most effective when taken within 72 hours of unprotected sex. Choice B is incorrect as it is not as effective after 5 days. Choice C is incorrect because emergency contraception works primarily by preventing ovulation, not by preventing implantation. Choice D is incorrect because most emergency contraception methods are available over the counter.