WebCross-Reactivity. Instant CLIA Waived devices (Point of Care Devices) can trigger false (positive or negative) results. All manufacturers encourage or mandate any positive test must be sent to Mass Spec for further interpretation. Medical Distribution Group, Inc. offers confirmation services. Please call 727-744-2967 for more information. WebAug 18, 2016 · Illicit methamphetamine will also show positive within the amphetamine immunoassay test. However, methylphenidate products do not cross-react with amphetamines and will commonly produce negative results, 8 although a false-positive result with methylphenidate has been seen in one pediatric case report. 1-2,8 If …
EMIT Drugs-of-Abuse Urine Assays Cross-Reactivity List - WakeMed
WebWhat is Methamphetamine? Stimulant that speeds up body’s system that comes as pill or powder. Available in prescription as Desoxyn® to treat obesity and ADHD. Crystal meth resembles glass fragments and is an … WebMDMA is a synthetic amphetamine structure and does cross-react with existing amphetamine immunoassays. However, the cross-reactivity of MDMA in amphetamine … pooh new eeyore
False-Positive Interferences of Common Urine Drug …
WebA sample was considered positive for amphetamines if amphetamine, methamphetamine, methylenedioxymethamphetamine, methylenedioxyethylamphetamine, or methylenedioxyamphetamine was present at 250 ng/mL. Ninety (40%) of the samples were positive by LC-MS-MS. WebThe results with control samples showed a positive cross-reactivity of chloroquine in the DRI Amphetamine Assay (approximately 0.74% and 0.89% at cutoff of 1000 and 500 … WebNov 5, 2015 · Urine drug screens (UDSs) are used to identify the presence of certain medications. One limitation of UDSs is the potential for false-positive results caused by cross-reactivity with other substances. Amphetamines have an extensive list of cross-reacting medications. The literature contains reports … shap onnx