What is the normal range of eGFR in mL/min/1.73 m²?

The normal range of estimated Glomerular Filtration Rate (eGFR) is typically considered to be between 90 and 120 mL/min/1.73 m². eGFR is a crucial indicator of kidney function, as it estimates how well the kidneys are filtering waste from the blood based on serum creatinine levels, age, sex, and other factors.

Values within this range indicate that the kidneys are functioning properly and have adequate filtration capacity. eGFR is particularly important in diagnosing and monitoring chronic kidney disease, as well as making decisions regarding medication dosing. Lower values outside this range can suggest varying degrees of renal impairment, warranting further investigation or intervention.

In this context, the option indicating 90-120 aligns with the standard clinical guidelines, making it the correct choice for representing the normal eGFR range. Other ranges presented do not typically reflect normal kidney function; rather, they indicate progressively worsening renal function or are not recognized as standard clinical benchmarks for eGFR.