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CREATININE (URINE,RANDOM)
MessageCHEMISTRY
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
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
