high trh and tsh but klow t3 and t4 Hypothyroidism - WikEM
Hypothyroidism WikEM Thyroid Hormones (T3, T4): Roles, Functions, High Low Levels SelfDecode Health The hypothalamic pituitary thyroid axis regulates thyroid hormone Download Scientific Diagram TSH vs T3 vs T4 High Yield Exam Points, TSH = Most sensitive screening test (FIRST test in thyroid disorders), TSH is the BOSS (negative feedback control), T3 = Most active hormone
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