A patient has been diagnosed with hyperthyroidism. The nurse should observe for which signs and symptoms indicative of a thyroid storm?

Rationale: A. Confusion & bradycardia is incorrect. Confusion can occur in thyroid storm due to severe hypermetabolism affecting the CNS, but bradycardia is not consistent with the condition. Thyroid storm typically causes tachycardia or arrhythmias, not a slow heart rate. B. Bradycardia & fever is incorrect. Fever is a key feature of thyroid storm, often greater than 101°F (38.3°C). However, bradycardia is opposite the expected hyperdynamic response. Patients usually have rapid heart rates, palpitations, and potential cardiovascular instability. C. Tachycardia & weight gain is incorrect. Tachycardia is correct; patients with thyroid storm are hypermetabolic and frequently present with rapid heart rates. Weight gain is incorrect because hyperthyroidism increases metabolism, leading to weight loss even if appetite is increased. D. Fever & tremors is correct. Both fever and tremors are classic signs of thyroid storm, reflecting hypermetabolism and sympathetic nervous system overactivity. Other associated signs include tachycardia, agitation, diaphoresis, confusion, and gastrointestinal symptoms. Early recognition is critical because thyroid storm is a life-threatening emergency requiring antithyroid therapy, beta-blockers, and supportive care.