Table 2.

Case 2: Thyroid Function Test Profile and Management

Age (Years)	TSH (μU/mL)	Free T4 (ng/dL)	T3 (ng/dL)	Treatment
	Normal = 0.3-5.0	Normal = 0.9-1.6	Normal = 127-221
8.00	0.01	4.8		MTZ 0.74 mg/kg/d. Propranolol for 2 weeks
8.20	97.24	0.4		MTZ reduced to 0.25 mg/kg/d
8.25	2.67	1.1	310	MTZ 0.25 mg/kg/d continued
8.35	0.04	1.81		MTZ increased to 0.7 mg/kg/d
8.45	110.41	0.6	94	MTZ reduced to 0.25 mg/kg/d
8.65	6.88	0.9	216	MTZ reduced to 0.125 mg/kg/d
8.75	0.05	1.9	318	MTZ 0.125 mg/kg/d
8.90	0.01	2.5		MTZ went back to 0.7 mg/kg/d
9.00	35.29	0.2	47	MTZ reduced to 0.25 mg/kg/d
9.10	0.80	1.6	406	MTX increased to 0.4 mg/kg/d. Recommended thyroidectomy

Abbreviations: TSH, thyroid-stimulating hormone; MTZ, methimazole.