<prompt> Which of the following is not associated with hypothyroidismLow T3High TSHHigh TriglyceridesLow cholesterol  <response>: Answer is D Low cholesterol: Hypothyroidism is associated with increased cholesterol Hypercholesterolemia and not with low cholesterol Hypocholesterolemia. A normal TSH excludes primary but not secondary hypothyroidism. If the TSH is elevated an unbound T4 level is needed to confirm the presence of clinical hypothyroidism but T4 is inferior to TSH where used as a screening test. Circulating unbound T3 Free T3 levels may be normal in about 25 of patients reflecting adaptive diodinase responses to hypothyroidism. Free T3 measurements are therefore not indicated. 