DEAR DR. ROACH: I am a 73-year-old female. A recent blood test returned an eGFR (estimated glomerular filtration rate) of 59. My physician’s nurse told me that the test was normal. When I asked her ...

A kidney test result that appears perfectly normal may still reveal hidden danger, according to a major new study involving more than a million adults.

An eGFR below 60 ml/min indicates possible kidney disease. High creatinine levels in the blood can suggest the kidneys are not working well. A urine albumin result higher than 30 mg/gram may be a sign ...

Kidney function tests use blood and urine samples to evaluate kidney function. Urine tests, such as urinalysis and creatinine clearance, can detect undesirable particles like blood, protein, or ...