Amphetamine false positive
[PDF File]Emit® Drugs of Abuse Urine Assays Cross-Reactivity List
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• discuss common causes of false-positive results when testing for amphetamines. Correct interpretation of testing results for amphetamines and related compounds is dependent on many factors including an understanding of the nomenclature, structure, and metabolism of these compounds.
What to Do If You Get False Positive for Amphetamines | New Heal…
Case Reports of Aripiprazole Causing False-Positive Urine Amphetamine Drug Screens in Children Justin Kaplan, PharmD a,b, Pooja Shah, PharmD , Brian Faley, PharmDa,b, Mark E. Siegel, MDc Urine drug screens (UDSs) are used to identify the presence of certain abstract medications.
[PDF File]510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION …
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* Benzphetamine metabolizes to amphetamine and methamphetamine. # Selegiline metabolizes to l-amphetamine and l-methamphetamine. Patients taking Selegiline may test positive by amphetamine assays. Negative — Structurally Related – The drugs listed are in µg/mL at which they will cross-react equivalent to the d-Methamphetamine cutoff.
[PDF File]Case Reports of Aripiprazole Causing False-Positive Urine ...
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that have been reported to cause false-positive results with cur-rently used immunoassays. Dimethylamylamine (DMAA), a widely used energy supple-ment, causes false-positive amphetamine screens in both the Roche KIMS wandSYVAEMITIIkits on a Roche/Hitachi Modular P platform (7). With spiking experiments, Vorce et al.
[PDF File]Cross Reactants /potential reactants and cross-reactants
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If the initial screen is positive, a GC/MS test is used to confirm the screen. GC/MS samples are considered positive if: methamphetamine is present at 300 pg/mg hair and amphetamine is present at 50 pg/mg hair. Alternatively, MDMA must be present at 300 pg/mg hair and MDA present at 50 pg/mg hair.
[PDF File]False-Positive Interferences of Common Urine Drug Screen ...
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What about Amphetamine result? •False “positive”! Moeller et al., Mayo Clinic Proc. 2017. CASE 2: AngryAdam’s Chief Complaint •Adam is a 49 year old male who presents to your primary care clinic •He has been your patient for 10 years •He is on buprenorphine/naloxone for opioid use disorder
[PDF File]Frequency of False Positive Amphetamine Screens due to ...
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Cross Reactants /potential reactants and cross-reactants Cross reactivity of structrally similar substances can be a problem associated with immunoassay methods, which can result in false positive or negative results. Screening technologies are predominantly immonoassay techniques which have proven to be highly sensitive but are of limited
[PDF File]EMIT Drugs-of-Abuse Urine Assays Cross-Reactivity List
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Frequency of False Positive Amphetamine Screens due to Bupropion Using the Syva Emit II Immunoassay Erica R. Casey & Mitchell G. Scott & Schirin Tang & Michael E. Mullins Published online: 30 December 2010 # American College of Medical Toxicology 2010 Abstract Bupropion is a commonly prescribed, monocy-clic antidepressant often used as an aid ...
[PDF File]How to correctly interpret a urine drug screen result
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EMIT Drugs-of-Abuse Urine Assays Cross-Reactivity List . EMIT II Plus – Cross-Reactivity Guide 3 EMIT II Plus ... d,l-Amphetamine 625 1,050 2,150 l-Amphetamine 3,450 3,750 11,500 ... Patients taking Selegiline may test positive by Amphetamine assays. EMIT II Plus – Cross-Reactivity Guide 6
[PDF File]Testing for Amphetamines and Related Compounds
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false positive result Sometimes a drug without structural similarity may bind to antibody (false positive) Lack of cross reactivity across a class may result in false negatives Qualitative result only (or semi-qualitative) Rapid result *Jagerdeo E, Schaff JE.
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