The hyperthyroidism normal range for TSH is below 0.4 mIU/L, often undetectable, with T3 levels higher than 200 ng/dL and T4 levels exceeding 12.0 µg/dL.
The hypothyroidism normal range for TSH is typically above 4.0 mIU/L, with T3 levels lower than 80 ng/dL and T4 levels below 5.0 µg/dL.