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CREATININE CLEARANCE 24 HR URINE ONLY
MessageCHEMISTRY
Test Code
24HR UA CREAT CLEAR
Includes
CREATININE, VOLUME, COMPUTED CREATININE CLEARANCE
Preferred Specimen
24HR URINE COLLECTION, PLUS ORDER AND BLOOD CREATININE ORDER
Minimum Volume
10 MLS
Instructions
COLLECT 24HR URINE SAMPLE,FIRST MORNING URINE OF START OF 24HRS NEEDS TO BE VOIDED, EVERYTHING AFTER THAT INCLUDING THE SECOND MORNINGS FIRST URINE CAN GO INTO JUG. RECORD DATE/TIME WHEN COLLECTION IS STARTED AND FINISHED. REFRIGERATE DURING COLLECTION. PT MUST BRING BACK TO WRJ OR A CBOC. MUST ALSO ORDER A PLASMA CREATININE WITH CLEARANCE, MUST ALSO ORDER.DRAW 1 LITH HEP. LT GRN TUBE, SPIN AND SEND TO LAB
Transport Container
24 HR URINE CONTAINER
Transport Temperature
REFRIGERATED
Specimen Stability
Room temperature: 2 days
Refrigerated (2-8°C): 6 days
Frozen (-20°C or colder): 6 months
Refrigerated (2-8°C): 6 days
Frozen (-20°C or colder): 6 months
Methodology
Kinetic Jaffe
Setup Schedule
DAILY
Report Available
DAILY
Reference Range
Gender Reference range Units
Male 85 - 125 mL/min
Female 75 - 115 mL/min
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
