Estimated GFR (eGFR)

Calculated kidney filtration rate. Defines chronic kidney disease (CKD) stage.

Units

mL/min/1.73m²

Reference (Male)

≥ 90 (normal)

Reference (Female)

≥ 90 (normal)

Aliases

Glomerular filtration rate

What it measures

Calculated kidney filtration rate. Defines chronic kidney disease (CKD) stage.

What a high value can mean

Generally favorable; very high values can suggest hyperfiltration in early diabetic nephropathy.

What a low value can mean

Acute or chronic kidney disease, dehydration, heart failure, certain medications.

Conditions it helps assess

Chronic kidney disease stage

Reading these numbers in context

Reference ranges describe the central 95 % of a healthy reference population — 5 % of perfectly healthy people fall outside any given range by definition. A single mildly abnormal value is rarely meaningful on its own. blood-test.life always interprets values together with related biomarkers before flagging.

Related biomarkers in Kidney Panel

Creatinine CR Waste product of muscle metabolism, cleared by kidneys. Used to estimate eGFR. Blood Urea Nitrogen BUN Nitrogen waste from protein breakdown. BUN/creatinine ratio helps differentiate causes of kidney injury.