A nurse is assessing a client who has hyperthyroidism. The nurse should expect the client to report which of the following manifestations?

Choice A reason: Frequent mood changes are common in hyperthyroidism due to increased metabolic activity and heightened sympathetic nervous system stimulation. Clients may experience irritability, anxiety, restlessness, and emotional lability. This is the correct answer. Choice B reason: Sensitivity to cold is associated with hypothyroidism, not hyperthyroidism. In hyperthyroidism, clients typically experience heat intolerance due to increased metabolic heat production. Choice C reason: Constipation is a manifestation of hypothyroidism. Hyperthyroidism accelerates gastrointestinal motility, often leading to diarrhea or frequent bowel movements. Choice D reason: Weight gain is characteristic of hypothyroidism. In hyperthyroidism, clients usually experience unintentional weight loss despite increased appetite, due to the elevated metabolic rate.