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Test Code CRDPS Creatine Disorders Panel, Serum

Additional Codes

Hospital Order Code
Lab2608   MISMGO


Ordering Guidance


For additional diagnostic testing, consider ordering CRDPU / Creatine Disorders Panel, Random, Urine.



Additional Testing Requirements


To diagnose all creatine deficiency syndromes, order CRDPU / Creatine Disorders Panel, Random, Urine in addition to this test.



Necessary Information


Patient's age and sex are required.



Specimen Required


Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube: Red top (serum gel/SST are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into plastic vial. Send serum frozen.


Useful For

Evaluating patients with a clinical suspicion of arginine:glycine amidinotransferase deficiency,guanidinoacetate methyltransferase deficiency, and creatine transporter deficiency using serum specimens

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Reporting Name

Creatine Disorders Panel, S

Specimen Type

Serum

Specimen Minimum Volume

0.1 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen (preferred) 14 days
  Refrigerated  7 days
  Ambient  72 hours

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Day(s) Performed

Tuesday

Report Available

3 to 9 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

82540

82565

82542

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CRDPS Creatine Disorders Panel, S In Process

 

Result ID Test Result Name Result LOINC Value
608077 Interpretation 59462-2
608078 Creatine 15045-8
608079 Creatinine 14682-9
608080 Guanidinoacetate 33244-5
608081 Creatine/Creatinine In Process
610857 Guanidinoacetate/Creatine In Process
610858 Guanidinoacetate/Creatinine In Process
608082 Reviewed By 18771-6