Which statement describes a rare, potentially life-threatening complication of myxedema?
The pituitary hormones release antidiuretic hormone in response to hypothyroid signaling, resulting in extensive diuresis.
A trigger such as illness or trauma results in an exaggeration of hypothyroidism that may include severe hypotension, seizures, and/or coma.
Over secretion of thyroid-stimulating hormones (TSH) leads to increased excretion of T3 and T4 with dangerous cardiac symptoms.
The heart does not allow proper flow of fluid throughout the body due to the elevated levels of circulating thyroid hormone.
The Correct Answer is B
Choice A rationale
The pituitary hormones releasing antidiuretic hormone in response to hypothyroid signaling, resulting in extensive diuresis, is not a known complication of myxedema. Myxedema is a severe form of hypothyroidism characterized by an underactive thyroid, not an overactive pituitary gland.
Choice B rationale
Myxedema coma, a rare but life-threatening complication of myxedema, can indeed be triggered by illness or trauma, leading to an exaggeration of hypothyroid symptoms. This can include severe hypotension, seizures, and/or coma. This condition is considered a medical emergency and requires immediate treatment.
Choice C rationale
Over secretion of thyroid-stimulating hormones (TSH) leading to increased excretion of T3 and T4 with dangerous cardiac symptoms is not associated with myxedema. Instead, this scenario is more likely to occur in hyperthyroidism, a condition characterized by an overactive thyroid, not an underactive one.
Choice D rationale
The heart not allowing proper flow of fluid throughout the body due to elevated levels of circulating thyroid hormone is not a characteristic of myxedema. In myxedema, the levels of thyroid hormones are low, not high.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice C rationale
The adrenal glands regulate the production of aldosterone. Aldosterone is a hormone that helps regulate blood pressure by managing the levels of sodium and potassium in the blood. It is secreted by the adrenal glands, which are small, triangle-shaped glands located on top of each of the kidneys.
Correct Answer is ["B","C","E"]
Explanation
Choice A rationale
Hyperkalemia, or high levels of potassium in the blood, is not a clinical manifestation of Cushing syndrome.
Choice B rationale
Thin skin that bruises easily is indeed a common symptom of Cushing syndrome. The condition causes the skin to become thin and fragile, leading to easy bruising.
Choice C rationale
A round, “moon face” appearance is another common symptom of Cushing syndrome. This is caused by the redistribution of fat to certain areas of the body, including the face.
Choice D rationale
Weight loss is not typically associated with Cushing syndrome. In fact, weight gain, particularly in the trunk of the body, is a more common symptom.
Choice E rationale
A fatty pad between the shoulders, often referred to as a “buffalo hump,” is a common symptom of Cushing syndrome. This is also due to the redistribution of fat in the body.
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