Which of the following data would a clinician consider as most indicative of acute renal failure?
A)
Alterations in blood pH; peripheral edema
B)
Increased nitrogenous waste levels; decreased glomerular filtration rate (GFR)
C)
Decreased serum creatinine and blood urea nitrogen (BUN); decreased potassium and calcium levels
D)
Decreased urine output; hematuria; increased GFR
Ans:
B
Feedback:
The hallmark of acute renal injury is azotemia, an accumulation of nitrogenous wastes such as creatinine, urea nitrogen, and uric acid, plus a decrease in the GFR of the kidneys. While pH alterations, edema, electrolyte imbalances, and decreased urine output may accompany acute renal failure, they are all potentially attributable to other pathologies. Creatinine, GFR, and BUN would unlikely rise during renal failure.
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