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?
A.
Nervousness
B.
Pruritus
C.
Cough
D.
Polyuria
The correct answer and Explanation is :
The correct answer is A. Nervousness.
Thyrotoxicosis is a condition caused by an excessive amount of thyroid hormone in the body, leading to symptoms that reflect an overactive metabolism. Clients with hypothyroidism who are prescribed levothyroxine—a synthetic thyroid hormone—are at risk for developing thyrotoxicosis if the dose is too high or if they become sensitive to the medication. Thyrotoxicosis can mimic hyperthyroidism, presenting with several key symptoms.
Explanation:
Levothyroxine is typically prescribed to replace or supplement thyroid hormones in individuals with hypothyroidism, which results from an underactive thyroid gland. This medication aims to normalize the thyroid hormone levels, improving the metabolic processes that hypothyroidism has slowed down. However, too much levothyroxine can lead to symptoms of thyrotoxicosis, which includes signs of an overactive thyroid.
One of the most notable early signs of thyrotoxicosis is nervousness or anxiety. This is due to the excess thyroid hormones overstimulating the central nervous system, causing increased alertness, jitteriness, restlessness, and in severe cases, panic attacks. Other associated symptoms can include palpitations, tremors, sweating, weight loss, and heat intolerance.
Why not the other options?
- Pruritus (itching) is not commonly associated with thyrotoxicosis. It is more related to skin conditions or allergic reactions.
- Cough is typically associated with respiratory conditions and not with thyroid disorders or thyrotoxicosis.
- Polyuria (frequent urination) is often seen in conditions like diabetes mellitus or diabetes insipidus but is not a typical feature of thyrotoxicosis.
In summary, nervousness is a key manifestation of thyrotoxicosis that the client should report to their healthcare provider when on levothyroxine therapy, as it could indicate the need for a dosage adjustment.