A member asked:

My father in law has alb/ creatinine urine test result of 4,291. he is being treated with lasix.his gfr is normal. blood results show bun is 28. bun/ creatinine ratio 27. can he still have significant kidney failure with normal gfr?

2 doctors weighed in across 2 answers
Dr. Donald Colantino answered

Specializes in Internal Medicine

He's spilling large amounts of albumin in his urine indicative of glomerular damage, ? from hypertension, diabetes,light chain nephropathy or glomerulonephritis. His renal tubular function is apparently still healthy enough to maintain a normal GFR and serum creatinine. He should be under the care of a nephrologist.

Answered Apr 26, 2023



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Dr. Birendra Tandan answered

Specializes in Urology


Answered Apr 27, 2023



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