False positive amphetamine levels

    • [DOC File]10-144 - Maine

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      Four samples, shown by GC/MS to contain ranitidine but no amphetamines, correctly tested negative with the new reagent, whereas they previously tested false positive. Two samples testing negative with the new reagent, and positive with the current reagent, had rates within 0.8% and 1.3% of …

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    • [DOC File]Beckman Coulter

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      Substance being Screened Agents with potential to cause false positive immunoassay Note Amphetamine OTC medicines containing ephedrine, pseudoephedrine, phenylephrine & phenylpropanolamine Available as OTC products e.g. Actifed(, Sudafed(, Benadryl(, Sinutab(, Beechams(, Lemsip(, Benalyn( Selegiline & amantadine Produce amphetamine metabolites ...

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    • [DOC File]Medical Review Officer Manual - SAMHSA

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      Amphetamine 300 pg/mg. Methamphetamine 300 pg/mg. MDMA 300 pg/mg. ... In those instances where a false positive result was reported, a retrospective investigation of client specimen records must take place to determine if similar errors had occurred. ... the drugs and metabolites tested for, whether the test results were negative or confirmed ...

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    • [DOC File]PROCEDURE -il.org

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      Levels on confirmation testing for urine specimens which are equal to or exceed the following shall be reported as positive: Amphetamines (amphetamine, methamphetamine)1 500 ng/mL Cannabinoids (11-nor-Delta-9-tetrahydrocannabinol- 9-carboxylic acid) 15 ng/mL Cocaine (benzoylecgonine) 150 ng/mL Phencyclidine 25 ng/mL Methaqualone Opiates 150 ng ...

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    • [DOC File]DRUG TESTING PROTOCOL - Forensic Network

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      Clinical Sensitivity was determined by assaying blind-coded Amphetamine positive samples. We classified as Positive a sample that when tested with the Sensatest One-step Amphetamine Test showed only one coloured back in the Control Region, with no coloured band in the Test Region. ... where TN: True Negative, and FP: False Positive. Clinical ...

      false amphetamine positive

    • [DOC File]1

      https://info.5y1.org/false-positive-amphetamine-levels_1_6f2166.html

      The amphetamine and opiate cut-off levels are higher on the dipsticks than testing by TASCLabs. The Federal Department of Transportation established the higher levels to allow greater compliance of transportation workers to random drug screens. ... Certain herbal products or foods might also yield a false-positive result. Careless collection or ...

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    • [DOCX File]The - EMCDDA home page | www.emcdda.europa.eu

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      Example of chromatogram, TOF-MS and TOF-MS/MS for determination of false positive determination of simvastatine by suspect screening 1. Hermes, N., et al., Quantification of more than 150 micropollutants including transformation products in aqueous samples by liquid chromatography-tandem mass spectrometry using scheduled multiple reaction ...

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    • Drug Tests Often Trigger False Positives

      An MRO may request the quantitative results of amphetamine analytes below the cutoff for a specimen reported positive for one or more amphetamine analytes. ... that prevent the possibility of false positive methamphetamine results due to this conversion: ... quantitate methamphetamine and amphetamine in the presence of high levels of ...

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    • [DOC File]CHAPTER 59A-24

      https://info.5y1.org/false-positive-amphetamine-levels_1_e8add6.html

      MDPV was commonly found together with amphetamine (79%) and benzodiazepines (76%); and a combination of MDPV, amphetamine and benzodiazepines was found in 63% of the MDPV positive cases. A study in Denmark also analysed blood samples …

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