Creatine, Serum : 37091

Test Code
CRETNQ 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



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.