NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

Disable ads (and more) with a membership for a one time $4.99 payment

Ace your North American Pharmacist Licensure Examination (NAPLEX) with our comprehensive practice test. Features include interactive flashcards, multiple-choice questions, with detailed hints and explanations. Fast-track your pharmacy career today!

Practice this question and more.

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.