T3 T4 TSHhormones
Thyroid Profile
Measures T3, T4 and TSH together to assess thyroid function.
What it measures
Triiodothyronine (T3), thyroxine (T4) and TSH.
Why it is ordered
To fully evaluate thyroid disorders.
How to prepare
No fasting required.
What happens during the test
A blood sample is drawn from a vein.
Normal ranges
| Group | Normal range |
|---|---|
| T3 | 80 โ 200 ng/dL |
| T4 | 5 โ 12 ยตg/dL |
| Tsh | 0.4 โ 4 mIU/L |
Ranges vary slightly between laboratories.
What abnormal results may mean
Patterns of T3/T4/TSH help distinguish types of thyroid disease.
Related conditions: Hypothyroidism, Hyperthyroidism
Related tests: TSH
โ ๏ธ Important: Abnormal results do not mean you have a disease. Always discuss your results with your doctor.