Most reliable marker for hypothyroidism:: (A) T3, (B) T4, (C) TSH, (D) Thyroxine binding globulin
Answer is C. Ans. (c) TSHRef : Harrison 19th ed. 12289* Best test for diagnosis of hypothyroidism is T.S.H (Thyroid Stimulating Hormone).* TSH can also be used for monitoring response to treatment.