General education
What a normal eGFR does and does not tell you
eGFR estimates filtration from a blood test. It does not show everything about kidney health, and one result is not the whole picture.
General education, not medical advice. Talk with a clinician about your own results.
What eGFR estimates
eGFR is an estimate of how much blood the kidneys filter each minute, calculated from a blood test and information such as age. It is useful, widely available, and part of routine care.
A result in the normal range is encouraging. It is one measurement, though, not a complete assessment of kidney health.
What it does not show
Kidney disease can also show up as albuminuria: protein leaking into the urine while filtration still looks normal. That is why kidney evaluation usually includes both a blood test and a urine albumin-to-creatinine ratio.
A normal eGFR with a raised urine albumin result is a pattern clinicians take seriously. One does not replace the other.
One result is not chronicity
Chronic kidney disease requires a finding that persists, generally for at least three months. A single abnormal result may reflect a temporary cause, so clinicians often repeat the test or look at earlier measurements before deciding what it means.
That is a reason to follow up, not a reason to delay care a clinician judges necessary.
Questions to discuss with a clinician
- What did my eGFR and my urine albumin result each show?
- Was a urine albumin test ordered, and if not, should it be?
- How do these results compare with my earlier ones?
- What follow-up or repeat testing do you recommend?
Practice this case
The missing testA single-visit record with a missing uACR result. Decide what it can and cannot establish, then read the explanation.Open the case →Sources
Background reading for the general medical statements in this guide. They do not describe NephroSense AI or its performance.