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Test Category: Biochemistry

Investigation Name:Estimated Glomerular Filtration Rate (EGFR)

Alias or Abbreviation:eGFR

Pathology Laboratory:Clinical Chemistry Ext 88266

Requestable Seperately?No

Part of Profile:UE

Tests in Profile:Na,K,U,Cre

E-Requesting Tab:BASIC-Blds

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:

Serum Gel Tube (Gold top)

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.

Collection Conditions / Other 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.

Referred to Another Laboratory?No