7th September 2020

A 56-year-old man comes to his GP for his TFT check-up

A 56-year-old man comes to his GP for his TFT check-up. He is on levothyroxine sodium 100mcg PO OD for 3 months. His TFTs show:

• TSH: 28 mu/l
• Free T4: 15 pmol/L

For the patient above, please select the SINGLE most likely diagnosis. Select ONE option from the list above. 

Reference Range

• Thyroid-stimulating hormone (TSH): 0.5-5.5 mu/l
• Free thyroxine (T4): 9-18 pmol/l
• Total thyroxine (T4): 70-140 nmol/l
• Triiodothyronine (T3): 1.2-3.0nmol/l