T02) Creatinine clearance using Jelliffe method
50. Pharmacokinetics 50.2) Plasma concentrations over time 50.2.2) Creatinine clearance
T01: Creatinine Clearance methods Normal 1
Total tried: Correct: Wrong:
Calculate the creatinine clearance of a 51-year old male patient with 128 lb of weight. The serum creatinine level of the patient is 1.24 mg/dL.
Jelliffe formula:
`CrCl_{m}=(98-0.8×(ag e-20))/(Serum \quad Cr)`
`CrCl_{f}=CrCl_{m} × 0.9`
Click on the button below to see the answer and explanations
lb equals 59.032 mL/min kg
-
Body weight =
128 lb = `(128 \quad lb)×(1 \quad kg)/(2.2 lb) =58.182 \quad kg`
This patient is male.
Plugging values in Jelliffe equation:
`CrCl_{m}=(98-0.8×(ag e-20))/(Serum \quad Cr)`
`∴ CrCl_{m}=(98-0.8×(51-20))/(1.24)`
`∴ CrCl_{m}=59.032`
Thus, the creatinine clearance of this patient is: 59.032 mL/min. (Ans).