Investigation Name:Estimated Glomerular Filtration Rate (EGFR)

Alias or Abbreviation:eGFR

Accreditation:UKAS Accredited ISO15189:2022 On scope

Pathology Laboratory:Clinical Chemistry/ Biochemistry

Requestable Seperately?No

Part of Profile:UE

Tests in Profile:Na,K,U,Cre

Units:mL/min/1.73m2

Minimum Sample Volume:1mL as part of UE

Expected Turnaround Time:Inpatients: 4hr;
Outpatients: 1 day

Test Code:UE

Sample Type:

Maximum Add on Time:3 days

Complex Reference Range:CKD Stage Description (eGFR in mL/min/1.73m2)
Stage 1: Kidney damage with normal kidney function 90 or above
Stage 2: Kidney damage with mild loss of kidney function 89 to 60
Stage 3a: Mild to moderate loss of kidney function 59 to 44
Stage 3b: Moderate to severe loss of kidney function 44 to 30
Stage 4: Severe loss of kidney function 29 to 15
Stage 5: Kidney failure Less than 15
Stage 1 and 2 only associated with CKD if structural abnormality of kidney; microalbuminuria; proteinuria or haematuria.

Referred to Another Laboratory?No

Further information:eGFR calculated using the CKD EPI (Chronic Kidney Disease Epidemiology Collaboration) equation from creatinine, age and gender. Please multiply by 1.159 if patient is Afro-Caribbean.
eGFR is not recommended for use with:
Individuals with unstable creatinine concentrations. This includes pregnant women; patients with serious co-morbid conditions and patients with acute kidney injury.
Results may be unreliable in patients with extremes in muscle mass and diet. This includes, but is not limited to, individuals who are amputees, paraplegics, bodybuilders and obese; patients who have a muscle-wasting disease or a neuromuscular disorder; and those suffering from malnutrition, eating a vegetarian diet.

Contact Number:01902 307 999 Ext 88266