Question

A 45-year-old woman presents with fatigue, weight gain, constipation, and cold intolerance. TSH is elevated, and free T4 is low. She is otherwise healthy and not pregnant. What is the most appropriate initial dose of levothyroxine?

Accepted Answer

25 micrograms daily

Answer

50 micrograms daily

Answer

1.6 micrograms per kg per day

Answer

300 micrograms daily

Answer

Dose based only on TSH level

Practice question

A 45-year-old woman presents with fatigue, weight gain, constipation, and cold intolerance. TSH is elevated, and free T4 is low. She is otherwise healthy and not pregnant. What is the most appropriate initial dose of levothyroxine?