high trh and tsh but klow t3 and t4 Hypothalamic Pituitary Thyroid Axis. Interactions between TRH, TSH, T3, Thyroid Stimulating Hormone (TSH) –
Thyroid Stimulating Hormone (TSH) SiPhox Health Why Thyroid Symptoms Are Often Missed or Mistreated FLOW CHART OF THYROID FUNCTION TESTS Here's your Flow Chart of Thyroid Function Tests a clear, stepbystep visual to help understand how doctors interpret results and narrow down possible thyroid problems. TSH vs T3 vs T4 Dont just memorize, UNDERSTAND , Most students get confused not because its hard but because they miss the feedback loop logic., TSH = Signal from brain, T3 = Active hormone
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