Table 3 Thyroid function test results

Basal total T4 (nmol/L)

<6.435

15 0- 50

Basal cTSH (ng/mL)

0.1

< 0.68

Free T4 (pmol/L)

4.0

6.6 - 40

TSH response test

See below

Basal total T4

9.9

4 hour total T4

29.3

TRH response test

See below

Basal total T4

12.1

Basal cTSH

0.07

30 minute cTSH

0.56

4 hour total T4

23.9

Monitoring treatment

1 month total T4

51.2

> 35 nmol/L

1 month cTSH

< 0.03