Answer DThyrotoxic crisis (storm)- This is an acute exacerbation of hypehyroidism.It occurs if a thyrotoxic patient has been inadequately prepared for thyroidectomy and is now extremely rare.Features: They present in 12-24 hours after surgery; with severe dehydration, circulatory collapse, hypotension, hyperpyrexia, tachypnoea, hyperventilation, palpitation, restlessness, tremor, delirium, diarrhea, vomiting, and cardiac failure; later coma.Treatment: Injection hydrocoisone, oral antithyroid drugs, tepid sponging of the whole body, beta-blocker injection, oral iodides, a large amount of IV fluids for rehydration, digitoxin, cardiac monitor, often ventilator suppo, with close observation.