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Test Code COKEUM Cocaine and Metabolite Confirmation, Urine

Important Note

This test is for confirmation testing only. For screening purposes please order a Rapid Drug Screen, Urine LAB676 first before this test.

Additional Codes

 

MAYO Test ID

COKEU

EPIC Test ID

LAB379

 

Reporting Name

Cocaine and metabolite Conf, U

Useful For

Detecting and confirming drug abuse involving cocaine

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Urine


Specimen Required


Collection Container/Tube: Plastic urine container

Submission Container/Tube: Plastic, 60-mL urine bottle

Specimen Volume: 20 mL

Collection Instructions:

1. Collect a random urine specimen.

2. Submit 20 mL in 1 plastic bottle.

3. No preservative.

Additional Information:

1. No specimen substitutions.

2. No STATS are accepted for this procedure.

3. For situations where chain of custody is required, a Chain-of-Custody Kit (T282) is available. For chain-of-custody testing, order COKEX / Cocaine and Metabolite Confirmation, Chain of Custody, Urine.

4. Additional drug panels and specific requests are available. Call Mayo Medical Laboratories at 800-533-1710 or 507-266-5700.

5. If urine creatinine is required or adulteration of the sample is suspected, the following test should be requested, ADULT / Adulterants Survey, Urine. For more information, refer to ADULT / Adulterants Survey, Urine.

6. Submitting less than 20 mL will compromise our ability to perform all necessary testing.


Specimen Minimum Volume

5 mL

Specimen Stability Information

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

Reference Values

Negative

Positives are reported with a quantitative GC-MS result.

Cutoff concentrations:

COCAINE BY GC-MS

<50 ng/mL

 

BENZOYLECGONINE BY GC-MS

<50 ng/mL

Test Classification

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

CPT Code Information

80353

G0480 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
COKEU Cocaine and metabolite Conf, U In Process

 

Result ID Test Result Name Result LOINC Value
2922 Cocaine-by GC/MS 20519-5
2902 Benzoylecgonine-by GC/MS 16226-3
20671 Cocaine Interpretation 69050-3
28080 Chain of Custody No LOINC Needed

Analytic Time

2 days

Reject Due To

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

NA

Method Name

Gas Chromatography-Mass Spectrometry (GC-MS) Confirmation with Quantitation

Day(s) and Time(s) Performed

Monday through Thursday, Sunday