| | Reference Range |
|---|
| TSH | 0.4-4.0 uIU/L |
| TSH (Thyroid Stimulating Hormone) stimulates production and release of T4 and T3 by the thyroid gland. A low TSH result can indicate hyperthyroidism while a high result can indicate hypothyroidism. |
| Free T4 | 0.8-1.9 ng/dL |
| Free T4 (non-protein bound thyroxine) is produced by the thyroid gland and is a good reflection of thyroid status. Low results indicate hypothyroidism while high results indicate hyperthyroidism. |
| Free T3 | 1.5-4.1 pg/mL |
| Free T3 (non-protein bound triiodothyronine) is produced by the thyroid gland and is a good reflection of thyroid status. Low results indicate hypothyroidism while high results indicate hyperthyroidism. |
