| Total Urine Vol (mL) | |
| Urine Cr (mg/dL) | |
| Serum Cr (mg/dL) |
Creatinine Clearance (mL/min) = (uCr × uV)/(sCr × 1440)
1. Where uCr is urine creatinine in mg/dL
2. Where sCr is serum creatinine in mg/dL
3. Where uV is 24-h urine volume in mL
4. Where 1440 represents number of minutes in 24 h