Purser Wellness approved rule
Unit: mL/min/1.73 m²
Male: G1 ≥90
Female: G1 ≥90
How to read this marker
G2 60-89; G3a 45-59; G3b 30-44; G4 15-29; G5 <15. G1/G2 alone do not establish CKD without kidney damage.
The wider testing context
Routine chemistry intervals plus kidney staging. eGFR and albuminuria categories are clinical classifications, not simple normal ranges.
Using this reference
This is the approved adult, nonpregnant baseline unless the rule explicitly states otherwise. Keep the performing laboratory’s reference interval separate from this Purser Wellness rule. Match units and review the specimen, method, timing, medicines and relevant clinical context before interpreting a result. These pages do not calculate a personal high/low status or prescribe treatment.
A question to bring to your visit
Which parts of the eGFR, 2021 CKD-EPI rule apply to my report’s method, units and collection conditions, and what other findings should we review alongside it?
Approved by Dr. Daniel Purser, MD · PW-LABS-1.0. The source laboratory’s interval remains separate.
Names you may see
eGFR, 2021 CKD-EPI · eGFR