A glomerular filtration rate of 30-59 mL/min indicates which stage of chronic kidney disease?

A glomerular filtration rate (GFR) of 30-59 mL/min is classified as Stage 3 chronic kidney disease (CKD). This stage indicates a moderate decrease in kidney function, which is significant when considering the normal range for GFR in healthy adults, usually over 90 mL/min.

In the context of CKD staging, Stage 3 is further divided into Stage 3A (GFR 45-59 mL/min) and Stage 3B (GFR 30-44 mL/min), emphasizing varying degrees of kidney impairment. The classification system is crucial for determining the severity of the disease, guiding treatment options, and predicting outcomes. As kidney function declines further, patients may experience complications related to waste buildup, fluid retention, and imbalances in electrolytes.

The other stages of CKD correspond to different GFR ranges: Stage 1 is characterized by a GFR of 90 mL/min or more, Stage 2 ranges from 60-89 mL/min, and Stage 4 shows severe impairment with GFR levels between 15-29 mL/min. Thus, recognizing that a GFR of 30-59 mL/min aligns with Stage 3 is