Opiates
Label Mnemonic: | OPIU |
Epic code: | LAB7385 |
Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Chemistry
6240 RCP
356-3527
6240 RCP
356-3527
Specimen(s):
Urine Screen
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 opiates only. For full drug of abuse-urine panel, see "Drugs of Abuse Screen". If confirmation is needed for opiates, call the Laboratory at 356- 3527. Allow up to seven days for confirmatory results. Confirmation is at an additional charge. Approximate cut-off concentrations (ng/mL) ----------------------------------------- Buprenorphine No cross-reactivity Codeine 224 6-Acetylmorphine (heroin metabolite) 386 Fentanyl No cross-reactivity Heroin 366 Hydrocodone 1,086 Hydromorphone 1,425 Meperidine > 100,000 Methadone No cross-reactivity Morphine 300 Oxycodone* > 75,000 *Therapeutic use of oxycodone in the absence of any other opiates is unlikely to result in a positive opiates screen. 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.
CPT Code:
80361