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Hypothyroidism in pregnancy — GPhC CRA MCQ

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ModerateEndocrine TherapeuticsHypothyroidism in pregnancyGPhC CRA

A 32-year-old woman taking levothyroxine for hypothyroidism has a positive pregnancy test. She feels well and her last TSH 4 months ago was within range. Her booking appointment is in 3 weeks. What monitoring is required?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: D — arrange prompt thyroid function testing and prescriber review because requirements often increase in pregnancy

Thyroxine requirements commonly increase during pregnancy, and maternal hypothyroidism can affect pregnancy outcomes. Thyroid function should be checked promptly and the dose adjusted by the prescriber if needed. The patient should not stop levothyroxine. INR and ketone monitoring are not relevant to levothyroxine management.

Reference: BNF; NICE CKS: Hypothyroidism