How Does Age Impact KFT Test Results?

Age significantly impacts KFT results, as kidney function naturally declines with aging. Glomerular filtration rate (GFR) decreases gradually after age 30, with a typical decline of about 1 mL/min per year. Older adults often have slightly elevated creatinine or lower GFR, which may still fall within acceptable ranges for their age group. Age-related changes in muscle mass, hydration levels, and overall metabolism can also influence markers like creatinine and BUN. Regular KFT testing becomes increasingly important as individuals age, especially to monitor for conditions like chronic kidney disease (CKD), which is more prevalent in older populations. Adjusting treatment goals to reflect age-related norms ensures accurate interpretation and management.