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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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During which trimester is Propylthiouracil (PTU) recommended for treating hyperthyroidism in pregnancy?

First
Second
Third
All trimesters

The correct answer is: First

Propylthiouracil (PTU) is recommended for treating hyperthyroidism in pregnancy during the first trimester. This is because PTU is preferred over methimazole during the first trimester due to a lower risk of causing birth defects such as congenital malformations. However, after the first trimester, methimazole is preferred over PTU for the treatment of hyperthyroidism as it has a lower risk of hepatotoxicity for the mother. Therefore, PTU is recommended during the first trimester specifically for the safety of the developing fetus, making option A the correct choice.