19th April 2022

A 23-year-old primiparous lady at 10 weeks comes to see her GP

A 23-year-old primiparous lady at 10 weeks comes to see her GP. She has a history of hypothyroidism and has increased her levothyroxine appropriately to adjust for her pregnancy, however despite this, she still feels lethargic and wonders if the increase is enough.

Her baseline before pregnancy was 100mcg, which has now increased to 150mcg. Her current thyroid function tests show an increased TSH, and a borderline low T4.

You wonder if she is taking her medication correctly.

Which of the following is true in regard to how to take levothyroxine?

Select the SINGLE most appropriate option from the list below. Select ONE option only.