免费肌酐清除率计算器
使用Cockcroft-Gault公式计算肌酐清除率，评估肾功能。
Creatinine Clearance
100.0 mL/min
Creatinine Clearance vs Age
公式
Cockcroft-Gault Equation
CrCl = [(140 - Age) x Weight(kg)] / [72 x Serum Creatinine] x (0.85 if female)
This equation estimates creatinine clearance as a proxy for glomerular filtration rate (GFR).
Kidney Function Stages
计算示例
A 50-year-old male, 80 kg, serum creatinine 1.0 mg/dL.
- 01CrCl = (140 - 50) x 80 / (72 x 1.0)
- 02= 90 x 80 / 72
- 03= 7200 / 72 = 100 mL/min (Normal)
常见问题
What is creatinine clearance?
Creatinine clearance measures how well the kidneys filter creatinine from the blood. It serves as an estimate of the glomerular filtration rate (GFR).
Why is this equation important?
The Cockcroft-Gault equation is widely used for adjusting drug dosages in patients with reduced kidney function. Many drug labels reference this equation.
What is a normal creatinine level?
Normal serum creatinine is typically 0.7-1.3 mg/dL for men and 0.6-1.1 mg/dL for women. Higher values may indicate reduced kidney function.
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