<prompt> Which of the following is not used in the management of thyrotoxic crisis: March 2011PropranololHydrcoisolOral potassium iodideLevo-thyroxine  <response>: Ans. D: Levo-thyroxine Thyrotoxic crisis storm requires the administration of intravenous fluids, cooling the patients with ice packs, the administration of oxygen, diuretics for cardiac failure, digoxin for uncontrolled atrial fibrillation, sedation and I V hydrocoisone. Specific treatment is with carbimazole 10-20 mg 6 hourly, Lugols iodine 10 drops 8-hourly by mouth or sodium iodide 1 g I V. Propranolol I V 1-2 mg or orally 40 mg 6 hourly will block beta-adrenergic effects 