CREATININE (URINE,RANDOM)

Message
CHEMISTRY


Test Code
CREAT


Alias/See Also
URINE CREATININE


Includes
CREATININE


Preferred Specimen
URINE-RANDOM


Minimum Volume
2-10 MLS


Instructions
COLLECT RANDOM URINE SAMPLE, SEND 5-10 MLS OF URINE REFRIGERATED


Transport Container
STERILE CUP- YELLOW BD URINE TUBE


Transport Temperature
REFRIGERATED


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


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
INSUFFICIENT QUANTITY


Methodology
Kinetic Jaffe

Setup Schedule
DAILY


Report Available
DAILY


Reference Range
Not established


Clinical Significance
Creatinine is the endproduct of creatinine metabolism.Creatinine is present primarily in muscle and the amount of creatinine produced is related to total skeletal muscle mass. Daily creatinine production is fairly constant except when there is a massive injury to muscle.The kidneys excrete creatinine very efficiently and blood levels and daily urinary excretion of creatinine fluctuate very little in healthy normal people. Since blood and daily urine excretion of creatinine show minimal fluctuation, creatinine excretion is useful in determining whether 24-hour urine specimens for other analysis (e.g., Protein) have been completely and accurately collected.


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.