5 doctors weighed in:

Why is creatinine measured in a 24 hour urine collection?

5 doctors weighed in
Dr. George Klauber
Pediatrics - Urology
3 doctors agree

In brief: Tell kidney function

Single urine specimens can be tested for creatinine.
But daily urine output and urinary concentration varies hence a 24 hr urine collection. Normal creatinine output for an adult should be >1gm/24 hours. Also getting blood creatinine provides optimal way to accurately determine creatine clearance which in turn is a most accurate way to measure kidney function.

In brief: Tell kidney function

Single urine specimens can be tested for creatinine.
But daily urine output and urinary concentration varies hence a 24 hr urine collection. Normal creatinine output for an adult should be >1gm/24 hours. Also getting blood creatinine provides optimal way to accurately determine creatine clearance which in turn is a most accurate way to measure kidney function.
Dr. George Klauber
Dr. George Klauber
Thank
Dr. Alok Agrawal
Internal Medicine - Nephrology & Dialysis

In brief: Cr clearance

To check creatinine clearance which is the function of the kidney.
Also to check if urine was appropriately collected for 24 hours.

In brief: Cr clearance

To check creatinine clearance which is the function of the kidney.
Also to check if urine was appropriately collected for 24 hours.
Dr. Alok Agrawal
Dr. Alok Agrawal
Thank
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