high tsh levels normal t4tsh reflex on abnormal to free t4tsh t4 levelshigh tsh normal free t4tsh with reflex to free t4 rangenormal level of t3 t4 and tshtsh reflex free t4 testtsh w reflex to free t4tsh reflex free t4 test resultshypothyroidism tsh and t4 levelselevated tsh normal t4high tsh normal t4 pregnancy