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Test Code COKEP Cocaine and Metabolites, Plasma


Ordering Guidance


Additional drug panels and specific requests are available; call 800-533-1710.



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Gray top (sodium fluoride/potassium oxalate plasma) (PST are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL Plasma

Collection Instructions:

1. Within 2 hours of collection, centrifuge at 4° C and aliquot plasma into a plastic vial.

2. Freeze the specimen.


Method Name

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

Specimen Type

Plasma

Specimen Minimum Volume

Plasma: 0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma Frozen (preferred) 28 days
  Refrigerated  6 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Day(s) Performed

Thursday

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.