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University of Iowa Diagnostic Laboratories (UIDL) Test Directory 319-384-7212 (local) 1-866-844-2522 (toll free) |
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| Drugs of Abuse Screen | |
| Order Code: DAU
Order Form: Laboratory Requisition |
Specimen: |
Urine | ||
Collection Medium: |
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Minimum: |
10 mls random urine | ||
Testing Schedule: |
24 hrs/day, 7 days a week, including holidays. | ||
Analytic Time: |
2 hours (upon receipt in laboratory) | ||
Reference Range: |
None | ||
Comments: |
Screen includes amphetamines, barbiturates, benzodiazepines, cocaine, opiates, tetrahydrocannabinoids (THC). A presumptive positive result for any of the tested drugs indicates the possible presence of the drug or metabolites in the urine, but does not measure the level of intoxication. If confirmation is needed for amphetamines, barbiturates, benzodiazepines, cocaine, opiates, and tetrahydrocannabinoids (THC), call UIDL Client Services 1-866-844-2522. Allow up to seven days for confirmatory results. Confirmation is at an additional charge. Test Cut-off Concentrations (ng/ml) Amphetamines 1000 Barbiturates 200 Benzodiazepine 100 Cocaine 300 Opiate 300 THC 50 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. De La Torre R, Domino-Salvany A, Badia R, Gonzalez G, McFarlane D, San L, Torrens M. Clinical Evaluation of the Triage Analytical Device for Drugs-of-Abuse Testing. Clinical Chemistry 1996;42(9):1433-1438. 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. See appendix "Cross Reacting Drugs". | ||
Methodology: |
Online DAT automated assays are based on the kinetic interaction of microparticles in a solution (KIMS) as measured by changes in light transmission. | ||
Sample Processing: |
Submit urine in leak-proof plastic container. Label transport tube with two patient identifiers, date and time of collection. | ||
Sample Storage: |
Refrigerate. | ||
Transport Instructions: |
Place requisition into outside pocket of bag. Place specimen into zip-lock type bag, seal bag. Transport in cooler with refrigerated coolant packs. | ||
CPT Code: |
80101 x6 | ||
See also: Drugs of Abuse Screen Confirmation, Urine | |||
See Additional Information: Cross Reacting Drugs |
Updated: 11/17/2009