24 HR URINE CREATINE CLEARANCE PANEL (WRJ)

Message
CHEMISTRY


Test Code
24 HR UA CREAT CL


Alias/See Also
24 HR URINE CREAT CLEARANCE


Includes
24 HR URINE TOTAL VOLUME ,URINE CREATININE, SERUM CREATININE, CREATININE RATIO


Preferred Specimen
24 HR URINE AND SERUM CREATININE


Minimum Volume
20 ML


Instructions
**THIS TEST DONE ON 24HR URINES ONLY** OBTAIN 24HR URINE CONTAINER FROM THE LAB. THIS IS A DRY URINE JUG. DATE AND TIME OF COLLECTION AT THE START OF COLLECTION, AND AT THE END OF COLLECTION MUST BE RECORDED ON THE JUG. KEEP ON ICE DURING COLLECTION PERIOD. REMEMBER TO ORDER A BLOOD CREATININE AT THIS TIME!


Transport Container
**THIS TEST DONE ON 24HR URINES ONLY**


Transport Temperature
REFRIGERATED OR CONTAINER ON ICE


Specimen Stability
Urine
Room temperature: 2 days
Refrigerated (2-8°C): 6 days
Frozen (-20°C or colder): 6 months

Serum
Room temperature: 2 days
Refrigerated (2-8°C): days
Frozen (-20°C or colder): 3 months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
IMPROPER COLLECTION CONTAINER OR MISSING SERUM CREATININE


Methodology
Kinetic Jaffe

Setup Schedule
DAILY:M-F


Report Available
24-48 HRS


Reference Range
Gender Reference range Units
Male 85 - 125 mL/min
Female 75 - 115 mL/min


Clinical Significance
Creatinine Clearance is used to evaluate the glomerular filtration rate (GFR). Clearance is defined as that volume of plasma from which a measured amount of substance could be completely eliminated into the urine per unit of time. Daily creatinine production is fairly constant except when there is massive injury to muscle.


Performing Laboratory
WHITE RIVER JUNCTION VT VA-CHEMISTRY 802-295-9363 EXT: 5518, 5519



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.