Decreased Radio iodine uptake is I are seen in: (A) Toxic multinodular goiter, (B) Grave's disease, (C) Subacute thyroiditis, (D) All
Answer is C. Answer is C (Subacute thyroiditis) Mayo Clinic Internal Medicine Concise Textbook (2007)/181: Harrison 18th/p 2917 Subacute Thyroiditis and Facititious thyroiditis are associated with decreased radioiodine uptake.