A 33-year-old woman at 28 weeks of gestation attends the GP. She was previously diagnosed with subclinical hypothyroidism (TSH 5.8 mIU/L with normal f...

Question

A 33-year-old woman at 28 weeks of gestation attends the GP. She was previously diagnosed with subclinical hypothyroidism (TSH 5.8 mIU/L with normal free T4) prior to conception and commenced on levothyroxine 50 mcg daily. Her latest TSH at 26 weeks is 3.8 mIU/L. According to BTA guidance, what is the trimester-specific TSH target in pregnancy?

Accepted Answer

TSH should be maintained in the lower half of the trimester-specific reference range, or below 2.5 mIU/L if local reference ranges are unavailable

Answer

TSH

Answer

TSH

Answer

TSH between 4.0 and 10.0 mIU/L is acceptable

Answer

TSH targets do not apply in pregnancy

uk-drcog MCQ (SBA): TSH Target in Pregnancy - Subclinical Hypothyroidism