What Is a Normal GFR by Age? Understanding Kidney Function Ranges
Discover normal GFR values by age to assess kidney health accurately. Learn how glomerular filtration rate changes over time.
0 views
Glomerular filtration rate (GFR) is a key indicator of kidney function, with normal values varying by age, sex, and body size. For most adults, a GFR over 90 mL/min/1.73 m^2 is considered normal. However, GFR generally declines with age. For instance, individuals in their 20s might have GFR values of about 90-120 mL/min/1.73 m^2, but by the age of 70, normal values might range from 60-70 mL/min/1.73 m^2. It's important to compare GFR values against age-appropriate reference ranges for accurate assessment.
FAQs & Answers
- What does a low GFR indicate? A low GFR usually indicates decreased kidney function, which may be a sign of chronic kidney disease or other renal issues.
- How does age affect GFR values? GFR naturally declines with age, with younger adults having higher GFR values (90-120 mL/min/1.73m²) and older adults (around 70 years) having lower normal values (60-70 mL/min/1.73m²).
- What factors influence normal GFR besides age? Besides age, factors such as sex, body size, and overall health condition can influence GFR values.