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A 55-year-old female asked:

55 yo white f. all serum blood tests results. creatinine clearance 135.5400 ml/min (h) bun 35 (h) creatinine 0.63 (n) gfr 105 (n) are kidneys ok? im nervous talking to dr face to face to ask. white coat syndrome?

2 doctor answers2 doctors weighed in
Dr. Hiep Le
Dr. Hiep Leanswered
Nephrology and Dialysis 43 years experience
By those results it seemed you had a 24 hour urine collection besides the routine blood test. The creatinine clearance is much higher (better) than the GFR is probably due to overcollection. All numbers are fine but you probably concern with a high BUN. BUN result varies a lot, not a good marker for kidney function. It is high with steroid use, high protein intake or low volume when tested.
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Dr. Gurmukh Singh
Pathology 50 years experience
All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, your results are not a cause for concern. The apparent high BUN may be due to dehydration, not kidney disease. Wish you good health!
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Mar 4, 2022

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