#june2020mccqe1
A 67-year-old woman goes to her primary care physician because of muscle weakness, frequent urination, and increased thirst. On examination, her blood pressure is 180/90 mm Hg. On prior visits she has been normotensive. Laboratory studies show that she is hypernatremic and hypokalemic. A CT scan of the abdomen shows a nodule on her left adrenal gland. What is the most likely mechanism for her disorder?
(A) Decreased glomerular capillary filtration coefficient
(B) Excessive tubular sodium reabsorption
(C) Increased renal secretion of renin
(D) Increased renal vascular resistance
(E) Patchy renal damage
A 67-year-old woman goes to her primary care physician because of muscle weakness, frequent urination, and increased thirst. On examination, her blood pressure is 180/90 mm Hg. On prior visits she has been normotensive. Laboratory studies show that she is hypernatremic and hypokalemic. A CT scan of the abdomen shows a nodule on her left adrenal gland. What is the most likely mechanism for her disorder?
(A) Decreased glomerular capillary filtration coefficient
(B) Excessive tubular sodium reabsorption
(C) Increased renal secretion of renin
(D) Increased renal vascular resistance
(E) Patchy renal damage
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