Question

A 64-year-old woman presents with progressive fatigue, cold intolerance and weight gain. TSH is 18 mIU/L (elevated) and free T4 is low. According to Canadian thyroid guidelines, what is the most appropriate treatment?

Accepted Answer

Start levothyroxine and titrate to normalise TSH

Answer

No treatment; repeat tests in 1 year

Answer

Start liothyronine (T3) monotherapy

Answer

Start desiccated thyroid extract

Answer

Treat only if TSH exceeds 30 mIU/L

Practice question

A 64-year-old woman presents with progressive fatigue, cold intolerance and weight gain. TSH is 18 mIU/L (elevated) and free T4 is low. According to Canadian thyroid guidelines, what is the most appropriate treatment?