False positive cocaine urine toxicology

• [PDF File]Ordering and Interpreting Urine Drug Tests

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  running out early; false negative (incorrect use of EIA rather than GCMS testing); urine adulterated . False positives. Are the results due to illicit use, a false positive on the screen, or a known metabolite of a prescribed medication? In considering prescribed medications, false positives on EIA (and GCMS where specified) may result from:

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• [PDF File]How to correctly interpret a urine drug screen result

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  •Results, pH, urine concentration •Review medication list? •Consider possibility of false-positive •Consider discussing with an expert (pathologist, pharmacist, chemist) •Confirmatory testing? •Review Goals of Care •Discuss changes in treatment plan •Review consequences of continued use of illicit/non-prescribed substances

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• [PDF File]Interpretation Guide: Broad Spectrum Urine Toxicology Screen

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  Interpretation Guide: Broad Spectrum Urine Toxicology Screen January 2016 The Broad Spectrum Urine Toxicology Screen provided by Dynacare incorporates liquid chromatography and tandem mass spectrometry (LC-MS/MS) for the targeted identification of sixty‐three (63) different drugs, drug metabolites and preparation ingredients. All urine ...

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• [PDF File]False-positive and false-negative test results in clinical urine drug ...

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  ‘False-positive’ and ‘false-negative’ test results in clinical urine drug testing The terms ‘false-positive’ and ‘false-negative’ are widely used in discussions of urine drug test (UDT) results. These terms are inadequate because they are used in different ways by physicians and laboratory professionals and they

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• [PDF File]False Positive and False Negative Results in Urine Drug Screening …

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  False Positive and False Negative Results in Urine Drug Screening Tests: Tampering Methods and Specimen Integrity Tests Bamdad Riahi-Zanjani Medical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. riahib@mums.ac.ir; bamdad_riahi@yahoo.com Abstract

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• [PDF File]Interpretation of Opiate Urine Drug Screens

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  barbiturate, benzodiazepines, cocaine, methadone, PCP, propoxyphene, and THC. These drugs are reported as positive if they are present at a concentration above the designated cutoff (see Regions Hospital Laboratory Toxicology website on myPartner for specific cutoffs and drugs detected) and confirmed as positive by GC/MS. For the pain ...

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• [PDF File]THE OPIOID EPIDEMIC & IMPORTANCE OF TOXICOLOGY TESTING

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  False positive rate can be easily affected by : Reagents/antibodies offered by the manufacture Medications that can interfere with the targeted analytes The dose of the medications and the concentrations excreted in urine Characteristics of the studied populations Reports of false-positive results of urine drug screens for

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• [PDF File]Urine Toxicology Use and Interpretation (Kara Lynch) [Read-Only]

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  3/10/2010 1 Urine Toxicology Use and Interpretation Kara Lynch Associate Chief of Chemistryygy and Toxicology San Francisco General Hospital 1) In a patient prescribed Tylenol #3, one would expect which of the following to

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• [PDF File]False-Positive Interferences of Common Urine Drug ... - Quality …

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  False-Positive Interferences of Common Urine Drug Screen Immunoassays: A Review Alec Saitman1*, ... strings ‘false positive [drug] urine’ yielding 173 articles. These arti-cles were then carefully analyzed and condensed to 62 that included data on causes of false-positive results. The discussion is separated into six sections by drug class with a corresponding table of cross-reacting compounds for quick …

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• [PDF File]Failure of Amoxicillin to Produce False-Positive Urine Screens for ...

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  literature to false.positive urine drug screens for cocaine metabolites. An exhaustive search of the peer-reviewed medical literature revealed no data to support this link. We hypothesized that amoxicillin does not cause false-positive urine drug screens for cocaine metabolites. To test this hypothesis, we examined the

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