Cocaine-Urine Screen
| Label Mnemonic: | COCU |
| Epic code: | LAB7384 |
| Order form: | Laboratory Requisition |
| Supply order: | Supply Order Form |
| Billing: | Billing Policies |
| CPT code: | 80353 |
Specimen(s):
Urine
Collection Medium:
) |
| Clear top tube |
Alternate
Collection Media:
Urine (Random)-BD Vacutainer®, no additive yellow top
Minimum:
5 mL random urine
Rejection Criteria:
Test cannot be added to a urine sample previously utilized for urinalysis testing (LAB1160, LAB1164, LAB8379).
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Reference Range:
None
Interpretive Data:
Drug of abuse screening tests are to be used for medical purposes only and not for non-medical purposes (e.g., employee, competitive athlete, or forensic testing).
Comments:
Screen includes cocaine only. For full drug of abuse-urine panel, see "Drug of Abuse Screen". If quantitative confirmation is needed for cocaine, call UIDL Client Services at 1-866-844-2522. Allow up to seven days for confirmatory results.
Quantitative confirmation is at an additional charge. Approximate cut-off concentrations (ng/mL) ----------------------------------------- Benzoylecgonine (metabolite) 300 Cocaine 21,200 Ecgonine methyl ester (metabolite) 326,000 Lidocaine No cross-reactivity* Procaine No cross-reactivity* *In general, local anesthetics do not cross-react with the cocaine immunoassay. References: Belson MG, Simon HK, Sullivan K, Geller RJ. The Utility of Toxicologic Analysis in Children with Suspected Ingestion. Pediatr Emerg Care 1999;15:383-387. Bast RP, Helmer SD, Henderson SR, Rogers MA, Shapiro WM, Smith RS. Limited Utility of Routine Drug Screening in Trauma Patients. South Med J 2000;93:397-399. Hammett-Stabler CA, Pesce AJ, Cannon DJ. Urine Drug Screening in the Medical Setting. Clinica Chimica Acta 2002;315:125-135. Schiller MJ, Shumway M, Batki SL. Utility of Routine Drug Screening in a Psychiatric Emergency Setting. Psychiatric Services 2000;51:474- 478. Sugarman JM, Rodgers GC, Paul RI. Utility of Toxicology Screening in a Pediatric Emergency Department. Pediatric Emergency Care. Pediatric Emergency Care 1997;13(3):194-197.
Test
Limitations:
There is the possibility that other substances and/or factors may interfere with the test and cause erroneous results (e.g., technical or procedural errors). Call the lab at 319-356-3527 for additional information.
Methodology:
Assay is based on the kinetic interaction of microparticles in a solution (KIMS) as measured by changes in light transmission.
Sample
Processing:
Submit in leak-proof container.
Label transport tube with two patient identifiers, date and time of collection.
Label transport tube with two patient identifiers, date and time of collection.
Sample
Storage:
Refrigerate.
Transport
Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.