Creatine Disorders Panel, Plasma or Serum
2002328
 
Ordering Recommendation
Mnemonic
CRTN DIS P
Methodology
Liquid Chromatography/Tandem Mass Spectrometry
Performed
Mon
Reported
2-9 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Green (sodium or lithium heparin), lavender (EDTA), plain red, or serum separator tube.  
Specimen Preparation
Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube and freeze immediately. (Min: 0.2 mL)  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
Specimens exposed to more than one freeze/thaw cycle.  
Remarks
Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (e.g., TPN therapy), drug therapy, and family history. Biochemical Genetics Patient History Form is available on the ARUP Web site at http://www.aruplab.com/patienthistory or by contacting ARUP Client Services.  
Stability
Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 2 weeks  
Reference Interval
Available Separately Components Reference Interval
Creatine, Plasma By report
Guanidinoacetic Acid, Plasma By report
Interpretive Data


See Compliance Statement B: www.aruplab.com/CS
Note
CPT Code(s)
82540; 83789
Components
Component Test Code*Component Chart Name
2002330Guanidinoacetic acid, Plasma
2002331Creatine, Plasma
2002332Creatine Disorder Plasma Interpretation
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • AGAT
  • Creatine, Plasma
  • Creatinine, plasma
  • GAA & Creatine
  • GAA + Creatine
  • GAMT
  • Guanidinoacetic Acid and Creatine
  • Guanidinoacetic Acid + Creatine
  • Guanidinoacetic acid, plasma