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Dr. Mark
Dr. Mark, Doctor (MD)
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Experience:  U.S. Physician/Surgeon in Neurosurgery
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glomerular filtration rate 89-NB what does this mean

Resolved Question:

glomerular filtration rate >89-NB? what does this mean
Submitted: 7 years ago.
Category: Health
Expert:  Dr. Mark replied 7 years ago.
Usually this means that your result is in the normal range (greater than 89) in "NB" non-black patient.

This is a measurement of your kidney's ability to filter blood.

For example, levels below 90 start to signify kidney disease, levels below 30 signify serious kidney disease, and levels below 15 often require dialysis.

When the number is XXXXX high, labs often just report it as greater than 89 (or greater than 90), which most people will consider normal.
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