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Creatine, Serum : 37091
Test CodeCRETNQ or 37091
CPT Codes
82540
Instructions
Serum separator tube.
Transport Container
Centrifuge serum separator tube ASAP and aliquot 2 mL serum into a standard transport tube. (Min: 1 mL) and freeze immediately.
Transport Temperature
Frozen.
Specimen Stability
Ambient: 4 hours; Refrigerated: 24 hours; Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Methodology
Enzymatiic
Setup Schedule
Monday - Saturday
Report Available
1-3 days (From receipt at performing laboratory)
Reference Range
less than 1.3 mg/dL
Clinical Significance
Creatine, produced by the liver, is essential for metabolism of the brain and muscles. Creatine is converted to creatinine and excreted.
Performing Laboratory
Quest Diagnostics