Final answer:
The expected response to methimazole, a medication for hyperthyroidism, is a decrease in symptoms such as weight loss. The correct answer to the student's question is B) Weight gain, which suggests a normalization of thyroid function as a result of the treatment with methimazole.
Step-by-step explanation:
The student is inquiring about the effects of methimazole, a medication used to treat hyperthyroidism, a condition where the thyroid gland is overactive, leading to symptoms such as weight loss, increased heat production, sweating, and an increased heart rate. Methimazole works to reduce the production of thyroid hormones, thus lowering the metabolic rate and mitigating these symptoms. An expected response to methimazole would be a decrease in the overactive thyroid symptoms. Therefore, the correct answer is B) Weight gain. This indicates a reduced metabolic rate and a normalization of thyroid function, opposing the weight loss associated with hyperthyroidism.
An increased heart rate (A) is a symptom of hyperthyroidism, not a response to treatment. Decreased TSH levels (C) could be indicative of hyperthyroidism initially, but in the context of methimazole therapy, TSH levels would typically rise as the thyroid hormone levels fall in response to treatment. Elevated blood glucose levels (D) are not a direct effect of methimazole on thyroid function.