Which CKD stage range corresponds to an eGFR between 30 and 44 mL/min/1.73 m^2?

Which CKD stage range corresponds to an eGFR between 30 and 44 mL/min/1.73 m^2?

• A. Stage 2 CKD
• B. Stage 3a CKD
• C. Stage 4 CKD
• D. Stage 3b CKD

Answer: (D)

Understanding CKD stages hinges on how well the kidneys filter, measured by eGFR. Stage 3 is a moderate drop in filtration and is subdivided: 3a covers about 45–59, while 3b covers 30–44. An eGFR in the 30–44 range means Stage 3b CKD, indicating more advanced impairment than 3a and typically signaling the need for closer monitoring and proactive measures to protect kidney function and manage complications. For reference, Stage 2 is 60–89, Stage 4 is 15–29, and Stage 5 is less than 15 or dialysis-dependent.

Understanding CKD stages hinges on how well the kidneys filter, measured by eGFR. Stage 3 is a moderate drop in filtration and is subdivided: 3a covers about 45–59, while 3b covers 30–44. An eGFR in the 30–44 range means Stage 3b CKD, indicating more advanced impairment than 3a and typically signaling the need for closer monitoring and proactive measures to protect kidney function and manage complications. For reference, Stage 2 is 60–89, Stage 4 is 15–29, and Stage 5 is less than 15 or dialysis-dependent.