GFR is a crucial indicator of renal health. A decreased GFR can signify chronic kidney disease (CKD) or acute kidney injury (AKI). Monitoring GFR helps in assessing the severity of kidney dysfunction and in guiding treatment decisions. For instance, a GFR below 60 mL/min/1.73 m² for three months or more is indicative of CKD, whereas a GFR below 15 mL/min/1.73 m² is considered kidney failure, necessitating dialysis or kidney transplantation.
