What is the eGFR range for CKD stage 4 (severe decrease)?

What is the eGFR range for CKD stage 4 (severe decrease)?

• A. 5-14 mL/min/1.73 m².
• B. 15-29 mL/min/1.73 m².
• C. 30-59 mL/min/1.73 m².
• D. 60-89 mL/min/1.73 m².

Answer: (B)

CKD staging uses estimated GFR to gauge how well the kidneys are filtering. When the eGFR falls into 15 to 29 mL/min/1.73 m², that’s classified as a severe decrease in kidney function, which is CKD stage 4. This range signals a substantial reduction in filtration capacity and prompts closer monitoring and planning for potential dialysis or transplant. For context, higher ranges like 60–89 indicate stage 2 CKD (mild), 30–59 indicates stage 3 (moderate), and an eGFR below 15 indicates kidney failure (stage 5).

CKD staging uses estimated GFR to gauge how well the kidneys are filtering. When the eGFR falls into 15 to 29 mL/min/1.73 m², that’s classified as a severe decrease in kidney function, which is CKD stage 4. This range signals a substantial reduction in filtration capacity and prompts closer monitoring and planning for potential dialysis or transplant. For context, higher ranges like 60–89 indicate stage 2 CKD (mild), 30–59 indicates stage 3 (moderate), and an eGFR below 15 indicates kidney failure (stage 5).