Tests 1st visit (before Carbimazole) 2nd visit (On Carbimazole) 3rd visit (After RAI) 4th visit (Follow-up after RAI, On T4) 5th visit (Follow-up after RAI, On T4) Units Reference ranges T4 88.2 50.2 5.97 16.3 19.2 pmol/L 11.5 to 22.7 T3 30.5 24.9 2.2 4 4.6 pmol/L 3.5 to 6.5 TSH <0.01 0.02 45.7 5.97 1.8 μIU/mL 0.55 to 4.78

Table 2: Follow-up biochemistry results.