Specimen Requirements
Title
Creatinine, 24HR Urine
Specimen Requirement
24 hour urine. Measure Total Volume and include on order form. Aliquot off urine specimen in clean leak proof container.
Methodology
Stability
Room Temp: 2 days; Refrigerated: 6 days
Reference Range
By report
Turnaround
1 day
Clinical Use
Renal function test when used as part of creatinine clearance; crude marker for completeness of 24-hour urine collections when collected for other purposes
Test Code
UCREA