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How does a kidney doctor diagnose kidney failure?
8 doctors weighed in

Dr. Rajesh Boorgu
Internal Medicine - Nephrology & Dialysis
6 doctors agree
In brief: Lab tests
Although there are clinical signs of kidney failure including swelling, high blood pressure, and other signs including loss of appetite, the most reliable diagnosis of kidney failure requires laboratory testing.
Specifically the blood is tested for blood urea nitrogen and creatinine levels. The urine may also be tested for abnormal proteins and the presence of red or white blood cells.

In brief: Lab tests
Although there are clinical signs of kidney failure including swelling, high blood pressure, and other signs including loss of appetite, the most reliable diagnosis of kidney failure requires laboratory testing.
Specifically the blood is tested for blood urea nitrogen and creatinine levels. The urine may also be tested for abnormal proteins and the presence of red or white blood cells.
Dr. Rajesh Boorgu
Dr. Rajesh Boorgu
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1 comment
Dr. James Cain
kidney biopsy is frequently needed to know exactly what the diagnosis is
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