单选题 A client is diagnosed with hyperthyroidism. The clinical manifestations of hyperthyroidism are similar to which of the following?
A. Hypovolemic shock.
B. Adrenergic stimulation.
C. Benzodiazepine overdose.
D. Addison's disease.

【正确答案】 B
【答案解析】Hyperthyroidism is a hypermetabolic state characterized by signs, such as tachycardia, systolic hypertension, and anxiety--all seen in adrenergic (sympathetic) stimulation. Manifestations of hypovolemic shock, benzodiazepine overdose, and Addison's disease are more similar to a hypometabolic state.