A patient with a history of hypothyroidism is prescribed a medication that increases thyroid hormone production. Which hormone is most likely affected?
Q1. A patient with a history of hypothyroidism is prescribed a medication that increases thyroid hormone production. Which hormone is most likely affected?
Answer: T4 (thyroxine)
Explanation: T4 (thyroxine) is the primary precursor to T3 (triiodothyronine), which mediates most of the effects of thyroid hormone.