NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

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What is the most effective form of emergency contraception and within how many days should it be used?

  1. Copper IUD within 5 days

  2. Levonorgestrel within 3 days

  3. Ulipristal within 5 days

  4. Plan B within 2 days

The correct answer is: Copper IUD within 5 days

The most effective form of emergency contraception is the Copper IUD, which can be used within 5 days of unprotected sex. While Levonorgestrel and Ulipristal can also be effective within the given time frame, the Copper IUD has a higher success rate. Plan B, while effective, should be used within 3 days of unprotected sex, making it less timely and potentially less effective than the Copper IUD. By providing a copper barrier, the Copper IUD can prevent fertilization and implantation, making it the most effective emergency contraception option.