A 65-year-old patient is admitted to the ICU with myxedema coma. Which of the following interventions is the priority for this patient?
Administer IV levothyroxine.
Start broad-spectrum antibiotics.
Administer corticosteroids immediately.
Initiate fluid restriction.
The Correct Answer is A
Choice A Reason:
Administering IV levothyroxine is the priority intervention for a patient with myxedema coma. Myxedema coma is a severe form of hypothyroidism that requires immediate thyroid hormone replacement to correct the deficiency and stabilize the patient’s condition. Intravenous levothyroxine is preferred because it provides a rapid increase in thyroid hormone levels, which is crucial for reversing the life-threatening symptoms of myxedema coma, such as hypothermia, bradycardia, and altered mental status.
Choice B Reason:
Starting broad-spectrum antibiotics is not the primary intervention for myxedema coma. While infections can precipitate myxedema coma and should be treated if present, the immediate priority is to address the severe hypothyroidism with thyroid hormone replacement. Antibiotics may be administered if an infection is suspected or confirmed, but they do not directly address the underlying thyroid hormone deficiency.
Choice C Reason:
Administering corticosteroids immediately is important but not the highest priority. Corticosteroids are often given to patients with myxedema coma to treat potential adrenal insufficiency, which can coexist with severe hypothyroidism. However, the primary intervention remains the administration of thyroid hormone replacement to correct the hypothyroid state.
Choice D Reason:
Initiating fluid restriction is not appropriate for managing myxedema coma. Patients with myxedema coma often require careful fluid management to address potential hyponatremia and maintain hemodynamic stability. Fluid restriction is not a standard intervention for this condition and does not address the critical need for thyroid hormone replacement.
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Related Questions
Correct Answer is C
Explanation
Choice A Reason:
The client’s tongue is not relevant for diagnosing cataracts. Cataracts are an eye condition characterized by clouding of the lens, which affects vision. The tongue does not provide any information related to the presence of cataracts.
Choice B Reason:
The client’s eyelid is also not relevant for diagnosing cataracts. While the eyelid can be examined for other eye-related conditions, it does not provide information about the lens’s clarity or the presence of cataracts. Cataracts specifically affect the lens inside the eye.
Choice C Reason:
The lens of the client’s eye is the correct area to examine for diagnosing cataracts. Cataracts cause the lens to become cloudy, leading to symptoms such as blurred vision, difficulty seeing at night, and sensitivity to light. An eye examination, including a slit-lamp exam, allows the healthcare provider to see the lens and identify any cloudiness or opacities indicative of cataracts.
Choice D Reason:
The posterior pharynx of the client’s throat is not relevant for diagnosing cataracts. This area is examined for conditions related to the throat and respiratory system, not for eye conditions. Cataracts are diagnosed through an eye examination focusing on the lens.
Correct Answer is A
Explanation
Choice A Reason:
An adenoma of the parathyroid gland is the most common cause of primary hyperparathyroidism. This benign tumor leads to the overproduction of parathyroid hormone (PTH), which in turn causes elevated calcium levels in the blood. The excessive PTH secretion disrupts the normal calcium balance, leading to symptoms such as fatigue, muscle weakness, and depression. Parathyroid adenomas account for approximately 80% of primary hyperparathyroidism cases.
Choice B Reason:
Thyroid carcinoma is a type of cancer that originates in the thyroid gland, not the parathyroid glands. While thyroid carcinoma can cause various symptoms, it does not typically lead to elevated PTH levels or hyperparathyroidism. Therefore, it is not the most likely cause of the patient’s condition.
Choice C Reason:
Vitamin D deficiency can lead to secondary hyperparathyroidism, where low levels of vitamin D cause decreased calcium absorption, prompting the parathyroid glands to produce more PTH to maintain calcium levels. However, this condition is usually associated with low or normal calcium levels, not elevated calcium levels as seen in this patient. Therefore, it is not the most likely cause of her hyperparathyroidism.
Choice D Reason:
Chronic kidney disease (CKD) can also cause secondary hyperparathyroidism due to impaired kidney function, which affects calcium and phosphate balance and vitamin D metabolism. However, similar to vitamin D deficiency, CKD-related hyperparathyroidism typically presents with low or normal calcium levels rather than elevated levels. Thus, it is not the most likely cause in this scenario.
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