What are the Stages of Chronic Kidney Disease Based on GFR?
CKD is classified into five stages based on GFR:
1. Stage 1: GFR ≥ 90 mL/min/1.73m² with kidney damage (e.g., proteinuria, abnormal imaging) 2. Stage 2: GFR 60-89 mL/min/1.73m² with kidney damage 3. Stage 3a: GFR 45-59 mL/min/1.73m² 4. Stage 3b: GFR 30-44 mL/min/1.73m² 5. Stage 4: GFR 15-29 mL/min/1.73m² 6. Stage 5: GFR What Factors Can Affect GFR? Several factors can influence GFR, including:
- Age: GFR naturally declines with age. - Sex: Males generally have a higher GFR compared to females. - Race: Certain racial groups may have variations in GFR. - Diet: High-protein intake can temporarily increase GFR. - Medications: Some drugs can affect kidney function and alter GFR. - Hydration Status: Dehydration can reduce GFR.
