23rd May 2025

A 57-year-old female is undergoing preoperative assessment prior to a total knee replacement.

A 57-year-old female is undergoing preoperative assessment prior to a total knee replacement. Her past medical history includes HTN and hypercholesterolaemia. She takes amlodipine 5mg OD and simvastatin 10mg OD. She has an extensive family history of thyroid disease. Her pre-op investigations reveal a picture of subclinical hypothyroidism. Which one of the following best describes subclinical hypothyroidism?

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