<prompt> Decreased Radio iodine uptake is I are seen inToxic multinodular goiterGraves diseaseSubacute thyroiditisAll  <response>: Answer is C Subacute thyroiditis Mayo Clinic Internal Medicine Concise Textbook 2007181: Harrison 18thp 2917 Subacute Thyroiditis and Facititious thyroiditis are associated with decreased radioiodine uptake. 