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
An insufficient amount of triiodothyronine (T3) and thyroxine (T4) leads to hypothyroidism, not severe manifestations in adrenocortical insufficiencies.
Choice B rationale
Decreased levels of all the adrenocortical hormones can lead to Addison’s disease, not the most severe manifestations in adrenocortical insufficiencies.
Choice C rationale
Deficiencies in the renin-angiotensin system can lead to problems with blood pressure regulation, not the most severe manifestations in adrenocortical insufficiencies.
Choice D rationale
An insufficient amount of circulating cortisol is a key feature of Addison’s disease, which is an adrenocortical insufficiency. This can lead to severe manifestations such as fatigue, muscle weakness, loss of appetite, and weight loss.
Correct Answer is A
Explanation
Choice A rationale
Occult blood in the stool is a clinical manifestation associated with colorectal cancer.
Choice B rationale
Vomiting is not typically associated with colorectal cancer.
Choice C rationale
Weight gain is not a common symptom of colorectal cancer.
Choice D rationale
Epigastric pain is not typically associated with colorectal cancer, as this type of pain is usually related to conditions affecting the stomach.
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