Kidney Disease

Frequently Asked Questions

9. What does the blood test for kidney disease reveal?

The blood test checks your GFR. GFR stands for glomerular (glow-MAIR-you-lure) filtration rate. GFR is a measure of how much blood your kidneys filter each minute. This shows how well your kidneys are working.

GFR is reported as a number.

  • A GFR of 60 or higher is in the normal range.
  • A GFR below 60 may mean you have kidney disease. However, because GFR decreases as people age, other information may be needed to determine if you actually have kidney disease.
  • A GFR of 15 or lower may mean kidney failure.

You can't raise your GFR, but you can try to keep it from going lower. Ask your healthcare provider what you can do to keep your kidneys healthy.