A nurse is assessing a client who has Graves' disease and is taking methimazole. Which of the following findings indicates the client needs a lower dose of the medication?

A. Weight loss: Weight loss is a common symptom of hyperthyroidism. If it persists, it may indicate that the current methimazole dose is insufficient rather than excessive. B. Exophthalmos: Exophthalmos, or protrusion of the eyes, is a manifestation of Graves’ disease itself and is not directly affected by the dose of methimazole. Adjusting the dose typically does not improve eye symptoms. C. Bradycardia: Bradycardia can indicate that methimazole has suppressed thyroid hormone levels too much, leading to hypothyroidism. A lower dose may be required to prevent excessive slowing of the heart rate. D. Diaphoresis: Excessive sweating is a symptom of hyperthyroidism. If present, it suggests that thyroid hormone levels are still elevated, and a higher rather than lower dose of methimazole may be needed.