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Chronic Kidney Disease 8 min read

CKD Staging Explained: The Five KDIGO GFR Categories and Three Albuminuria Grades

Chronic kidney disease is staged G1 to G5 by glomerular filtration rate (stage 3 is split into 3a and 3b) and graded A1 to A3 by albuminuria. Only when both axes are combined can risk be properly assessed.

CKD stages

October 13, 2026 Read more

Chronic Kidney Disease 7 min read

Understanding the 5 Stages of CKD: Reading Your Lab Report as a Patient

The first time I saw 'eGFR' on my lab report, I had no idea what it meant. Here's a plain-language guide to the five stages of kidney disease and what matters at each one.

CKD stages