eGFR

CalculatedEssential

Your kidney filtration rate, worked out from creatinine, age and sex.

Calculated rather than measured, but it is the form doctors actually act on.

This one isn’t a test

eGFR = CKD-EPI equation on creatinine, age and sex

No extra sample was taken for this and no extra assay was run. It is arithmetic on numbers already on your report — but it still adds a line to the advertised test count.

Computed from Serum Creatinine.

That does not make the number useless — eGFR is calculated and doctors act on it every day. It means it should not be counted as a separate test when you are comparing what a package costs.

Calculated from this result

Once a lab has this measurement, these lines cost it nothing to add.

Part of

How we rate it — Essential

Defensible in a routine adult check-up.

This rating and the description above were written against published screening guidelines by someone who is not a clinician, and are awaiting review by one. We would rather say that than imply an authority we do not have.

Check-ups that include it

In 62 of the 78check-ups we track — 79%. Cheapest first.

and 50 more.

Also sold as

Every one of these names refers to this same test. Resolving them to one canonical entry is what makes an honest comparison possible.

egfr · estimated gfr · gfr estimated · glomerular filtration rate

Information here is for comparing packages, not for diagnosing yourself. Talk to a doctor about which tests you actually need.