Demand management tutorial

A 70-year-old lady with primary hypothyroidism on thyroxine replacement. Her dose of thyroxine was recently increased and 2 weeks later her TFTs were repeated.

Initial results:

• TSH 35 mu/L (0.34 – 5.6)
• FT4 8 pmol/L (7.5 – 21.1)

Two weeks later her results were:

• TSH 31mu/L
• FT4 10.5 pmol/