Here are the normal ranges for common thyroid lab tests:

Thyroid Function Tests

1. TSH (Thyroid-Stimulating Hormone): 0.4-4.5 mIU/L (milli-international units per liter)
2. Free T4 (FT4): 0.8-1.8 ng/dL (nanograms per deciliter)
3. Free T3 (FT3): 2.3-4.2 pg/mL (picograms per milliliter)
4. Total T4 (TT4): 4.6-12.0 mcg/dL (micrograms per deciliter)
5. Total T3 (TT3): 80-200 ng/dL

Thyroid Antibody Tests

1. TPOAb (Thyroid Peroxidase Antibody): < 35 IU/mL (international units per milliliter)
2. TgAb (Thyroglobulin Antibody): < 20 IU/mL

Note

• Normal ranges may vary slightly depending on the laboratory and the specific testing methods used.
• These values are for adults; normal ranges for children and pregnant women may differ.
• Always consult with a healthcare professional to interpret lab results and determine the best course of action.