4 doctors weighed in:

Why are a creatinine clearance test and a serum creatinine test done together?

4 doctors weighed in
Dr. Peter Kurzweil
Internal Medicine
3 doctors agree

In brief: To get proper result

Creatinine clearance testing procedure and what measured is fully answered in prior question.
The serum creatinine must be drawn right after the 24 hour urine collection to calculate how much creatinine is in serum and compare it to the total creatinine in the urine collection, to get an accurate measurement of renal function.

In brief: To get proper result

Creatinine clearance testing procedure and what measured is fully answered in prior question.
The serum creatinine must be drawn right after the 24 hour urine collection to calculate how much creatinine is in serum and compare it to the total creatinine in the urine collection, to get an accurate measurement of renal function.
Dr. Peter Kurzweil
Dr. Peter Kurzweil
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