TSH,T4 and T3 (liothyronine): Blood test for TSH Thyroid stimulating Hormone secreted by Anterior Pituatry T4 and Free T4 T3 (liothyronine) T3 (liothyronine) AND T4 are the hormones excreted by Thyroid Hypothyroidism TSH is high AND T4 is low and T3 (liothyronine) may be normal or low Hyperthyroidism TSH is low T4 is high and T3 (liothyronine) may be high or normal
Answered 5/22/2018
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