• TSH: 0.4-4.0 mIU/L (may vary by lab)

• Free T4: 0.8-1.8 ng/dL (10-23 pmol/L)

• Free T3: 2.3-4.2 pg/mL (3.5-6.5 pmol/L)

• TPO Antibodies: <35 IU/mL (negative)

TSH (mIU/L) *

Normal: 0.4-4.0 mIU/L

Free T4 (ng/dL) *

Normal: 0.8-1.8 ng/dL

Free T3 (pg/mL)

Normal: 2.3-4.2 pg/mL

Total T4 (μg/dL)

Normal: 5-12 μg/dL

Total T3 (ng/dL)

Normal: 80-200 ng/dL

TPO Antibodies (IU/mL)

Negative: <35 IU/mL

Thyroglobulin Ab (IU/mL)

Negative: <40 IU/mL

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