What condition is caused by a benign tumor of the adrenal medulla that secretes epinephrine and norepinephrine?
Cushing syndrome
Addison disease
Graves’ disease
Pheochromocytoma
The Correct Answer is D
Choice A rationale
Cushing syndrome is caused by chronic high blood levels of cortisol or related corticosteroids.
Choice B rationale
Addison disease is a disorder in which the adrenal glands don’t produce enough hormones.
Choice C rationale
Graves’ disease is an autoimmune disorder that causes hyperthyroidism, not a benign tumor of the adrenal medulla.
Choice D rationale
Pheochromocytoma is a rare, usually noncancerous (benign) tumor that develops in cells in the center of an adrenal gland. This tumor can release hormones that can cause a persistent or episodic increase in blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Protrusion of the gastric mucosa through a segment of weakened muscle describes a hernia, not dysphagia.
Choice B rationale
Absence of a connection of the esophagus to the stomach describes esophageal atresia, not dysphagia.
Choice C rationale
Recurrent reflux of stomach acid into the esophagus describes gastroesophageal reflux disease (GERD), not dysphagia.
Choice D rationale
Dysphagia refers to difficulty swallowing.
Correct Answer is D
Explanation
Choice A rationale
A deficit of parathyroid hormone would not cause dwarfism, but it could lead to hypoparathyroidism, which can cause muscle cramps or spasms due to low levels of calcium in the blood.
Choice B rationale
Excessive levels of insulin could lead to hypoglycemia (low blood sugar), not dwarfism.
Choice C rationale
Excessive levels of somatotropin (GH) would not cause dwarfism. Instead, it could lead to gigantism in children or acromegaly in adults.
Choice D rationale
A deficit of somatotropin (GH) could indeed cause dwarfism. Somatotropin, also known as growth hormone, is essential for growth and development. A deficiency can result in short stature.
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