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HelpEpic Test Code LAB383 Creatinine Clearance: Urine, 24 hour
Performing Location(s)
BMC
Specimen Type
Preferred Container
24 Hour Urine Container with No Preservative, Keep refrigerated during collection
Alternate Container
24 Hour Urine container with 6N HCl
Minumum Volume to Submit for Testing
Entire Collection
Storage Requirements
Keep urine refrigerated during and after the collection period.
Transportation Needs
Deliver specimen to the laboratory at the end of collection. If transportation is expected to exceed 1 hour, provisions must be made to keep the urine chilled
Causes for Rejection
Mislabeled or unlabeled specimen
Greater than 10% of total volume lost
Inappropriate urine preservative used
Specimen not refrigerated during and after collection
No serum collection within 72 hours of urine collection
Reference Values
| Population | Units | Reference Range |
| All Populations | ml/min/SA or (mL/min) | 70-135 |
Available STAT
No
Days of Analysis
All
Additional Information
Other Requirements:
Refer to the 24-hour urine collection instructions in the Specimen Collection section of this Web
Date and time urine collection was started and ended MUST be documented.
Serum Creatinine must be completed within 24 hours of urine collection. Recommend collecting serum creatinine when the 24 hour urine is completed and dropped off.
NOTE: Test will not be performed without both urine and serum specimens
See Charts for calculations
| Creatinine Clearance is corrected for body surface area with following calculation: |
|
CRCL(mL/min/1.73sqm) = Uncorrected CRCL x 1.73 sq m |
| Uncorrected Creatinine Clearance is Calculated (if height and weight are unknown): |
|
CRCL(mL/min) = Urine Creatinine (mg/dL) x Total Volume (mL) |
Methodology
Beckman AU/Dx Series
CPT Code
82575,81050
Last Updated
29-Mar-19