A client is admitted to the hospital for treatment of a simple goiter, and levothyroxine sodium is prescribed. Which symptoms indicate to the nurse that the prescribed dosage is too high for this client?

A. Palpitations and shortness of breath are symptoms of thyrotoxicosis, indicating excessive thyroid hormone levels, which could result from an overdose of levothyroxine sodium.B. Bradycardia and constipation are more indicative of hypothyroidism, which would suggest the need for an increase in levothyroxine dosage rather than a decrease.C. Muscle cramping and dry, flushed skin are symptoms of hypothyroidism, which would suggest inadequate thyroid hormone replacement rather than excess.D. Lethargy and lack of appetite are also symptoms of hypothyroidism, not hyperthyroidism, which would not typically result from an overdose of levothyroxine.