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HelpTest Code COKEU Cocaine and Metabolite Confirmation, Random, Urine
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineOrdering Guidance
1. 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, Random, Urine.
2. Additional drug panels and specific requests are available. Call 800-533-1710 or 507-266-5700.
3. If urine creatinine is required or adulteration of the sample is suspected, order ADULT / Adulterants Survey, Random, Urine.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Collection Container/Tube: Plastic urine container
Submission Container/Tube: 10-mL urine tube
Specimen Volume: 10 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Additional Information:
1. No specimen substitutions.
2. STAT requests are not accepted for this test.
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 (Positive results are reported with a quantitative result.)
Cutoff concentrations by gas chromatography mass spectrometry:
Cocaine: 50 ng/mL
Benzoylecgonine: 50 ng/mL
CPT Code Information
G0480
80353 (if appropriate for select payers)
Clinical Information
Cocaine is a drug of current health concern because of its proliferation among recreational drug abusers.
Freebase and crack increase the potential for major cocaine toxicity. Cocaine use is declining across the nation according to the National Institute of Drug Abuse.
Increasingly, laboratory results are disputed or there are medical/legal overtones. Therefore, physicians are finding an increased need to confirm positive results before informing or confronting the patients.
Report Available
2 to 5 daysReject Due To
| All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Method Name
Gas Chromatography Mass Spectrometry (GC-MS) Confirmation with Quantitation
Day(s) Performed
Monday, Wednesday, Thursday, Friday
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.