A patient is admitted after surgery with a history of hyperthyroidism.The nurse suspects the patient may be developing thyroid storm.Which finding would confirm this suspicion?

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Thyroid storm,also called thyroid crisis,is a rare and life-threatening exacerbation of hyperthyroidism.The pathophysiology underlying the transition from hyperthyroidism to thyroid storm is not fully understood because thyroid hormone levels are not necessarily different from patients with hyperthyroidism.Atrial fibrillation is the most common dysrhythmia in patients with hyperthyroidism,and tachydysrhythmias should be anticipated in thyroid storm,especially in patients with underlying heart disease.

A Patient Is Admitted After Surgery with a History of Hyperthyroidism.The