Levothyroxine sodium is prescribed for a client with hypothyroidism. The nurse should instruct the client to report which symptom because it indicates that the client is taking too much levothyroxine sodium.

A. Restlessness: Restlessness is a sign of excessive levothyroxine sodium, which can lead to symptoms of hyperthyroidism. Other signs include palpitations, nervousness, and insomnia. Overmedication can accelerate metabolism and cause these symptoms. B. Decreased appetite: Decreased appetite is not typically associated with overmedication of levothyroxine. Instead, a decreased appetite might be related to other conditions or medications but is not a primary indicator of excessive thyroid hormone. C. Intolerance to cold: Intolerance to cold is more indicative of hypothyroidism or insufficient dosing of levothyroxine rather than overmedication. Excessive levothyroxine usually causes symptoms of hyperthyroidism, such as heat intolerance. D. Constipation: Constipation is more commonly associated with hypothyroidism or insufficient levothyroxine dosing. Overmedication generally leads to symptoms like diarrhea rather than constipation.