low tsh and normal t4high tsh normal free t4low tsh normal t4 on levothyroxinelow tsh normal t4 on synthroidlow tsh levels normal t4high t4 low tsh after thyroidectomyhigh tsh normal t4 pregnancylow tsh low t4high tsh levels normal t4low tsh but normal t3 and t4normal level of t3 t4 and tshhigh tsh with normal t3 and t4
