Creatine Disorders Panel, Urine
2002333
Ordering Recommendation
Initial test to diagnose or rule out creatine deficiency syndromes following clinical presentation. Order Creatine Disorders Panel, Plasma or Serum (2002328), simultaneously for proper result interpretation.
Mnemonic
CRTN DIS U
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
Random or timed urine.  
Specimen Preparation
Transfer 2 mL urine to an ARUP Standard Transport Tube and freeze immediately. (Min: 0.5 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: Unacceptable; Frozen: 2 weeks  
Reference Interval
Reports include age appropriate reference intervals and interpretation
Test Number Components Reference Interval
Creatine, Urine By report
Guanidinoacetic Acid, Urine By report
Creatinine, Urine By report
Interpretive Data


See Compliance Statement B: www.aruplab.com/CS
Note
CPT Code(s)
82540; 82570; 83789
Components
Component Test Code*Component Chart Name
2002334Creatinine, Urine
2002336Guanidinoacetic acid, Urine
2002338Creatine, Urine
2002339Creatine Disorder Urine 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, please click the sidebar link to access the Interface Map.
Cross References
  • AGAT
  • GAA & Creatine
  • GAA + Creatine
  • GAMT
  • Guanidinoacetic Acid + Creatine
  • Guanidnoacetic Acid & Creatine