A nurse is reinforcing teaching with a client who has hypothyroidism and a new prescription for levothyroxine.The nurse should instruct the client to notify the provider of which of the following manifestations of thyrotoxicosis?

Choice A rationale:"Nervousness." Rationale: This is a correct instruction. Thyrotoxicosis is a condition characterized by excessive thyroid hormone production. Common symptoms include nervousness, anxiety, restlessness, and emotional instability. The client should notify the healthcare provider if they experience these symptoms as they may indicate an excessive dose of levothyroxine.Choice B rationale:"Cough." Rationale: Cough is not typically associated with thyrotoxicosis. Symptoms of thyrotoxicosis are primarily related to an overactive thyroid gland and may include palpitations, weight loss, heat intolerance, and nervousness.Choice C rationale:"Pruritus." Rationale: Pruritus (itching) is not a common symptom of thyrotoxicosis. Itchy skin is more likely related to other dermatological or systemic conditions and should be evaluated separately.Choice D rationale:"Polyuria." Rationale: Polyuria (excessive urination) can be associated with both hypothyroidism and hyperthyroidism, but it is not a typical manifestation of thyrotoxicosis. Increased urination is more commonly seen in conditions like diabetes mellitus. Therefore, polyuria alone may not be indicative of thyrotoxicosis in this context.