A client has been diagnosed with myxedema from long-standing hypothyroidism. What clinical manifestations of this disorder does the nurse recognize as progressing to myxedema coma? Select all that apply.

Title: Choice A Reason:

Patients with seafood allergies may have a higher risk of allergic reactions to iodinated contrast media used in CT scans. However, this is not a definitive contraindication. The nurse should inform the patient to notify their healthcare provider about any known allergies, including seafood, as a precautionary measure. This allows the healthcare team to take necessary steps to prevent any adverse reactions, such as premedication with antihistamines or corticosteroids.

Title: Choice B Reason:

Metformin is a common medication used to manage type II diabetes. When a patient is scheduled for a CT scan with IV contrast, it is crucial to withhold Metformin before the procedure. This is because the combination of Metformin and iodinated contrast can increase the risk of contrast-induced nephropathy (CIN) and lactic acidosis, a rare but serious condition. The general recommendation is to stop Metformin at the time of or prior to the procedure and withhold it for 48 hours after the procedure, resuming only after renal function has been re-evaluated and found to be normal.

Title: Choice C Reason:

CT scans, especially those requiring IV contrast, are typically performed in a radiology suite equipped with the necessary technology and medical personnel. Performing such a procedure at the bedside is uncommon and not standard practice due to the need for specialized equipment and immediate access to emergency care in case of adverse reactions. Therefore, this statement is incorrect.

Title: Choice D Reason:

Taking Metformin as usual before the test is not recommended due to the risk of lactic acidosis when combined with iodinated contrast. As previously mentioned, Metformin should be withheld before and after the procedure until renal function is confirmed to be normal. This precaution helps to prevent any potential complications associated with the interaction between Metformin and the contrast agent.

Provide a quiet, low-stimulus environment

Choice A Reason:

Provide a quiet, low-stimulus environment

This is the correct answer. A quiet, low-stimulus environment helps to reduce the metabolic demands on the body and prevent overstimulation, which can trigger a thyroid crisis. Hyperthyroidism increases the body’s metabolic rate, and excessive stimulation can exacerbate symptoms and lead to a crisis. Therefore, creating a calm environment is crucial in managing hyperthyroidism and preventing complications.

Choice B Reason:

Keep the client NPO

Keeping the client NPO (nothing by mouth) is not typically necessary for preventing a thyroid crisis. While it may be required for certain procedures or if the client is experiencing severe symptoms, it is not a standard intervention for hyperthyroidism management. Therefore, this choice is not correct.

Choice C Reason:

Administer aspirin as prescribed for any sign of hyperthermia

Administering aspirin for hyperthermia is not recommended in clients with hyperthyroidism. Aspirin can increase free thyroid hormone levels by displacing thyroid hormones from their binding proteins, potentially worsening hyperthyroidism. Instead, other antipyretics like acetaminophen are preferred. Therefore, this choice is not correct.

Choice D Reason:

Observe the client carefully for signs of hypocalcemia

Observing for signs of hypocalcemia is not directly related to preventing a thyroid crisis. Hypocalcemia is more commonly associated with thyroidectomy or parathyroidectomy rather than hyperthyroidism itself. Therefore, this choice is not correct.