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Evaluation of the Abbott ADx Amphetamine/Methamphetamine II abused drug assay: comparison to TDx, EMIT, and GC/MS methods. 1991

M A Przekop, and J E Manno, and G W Kunsman, and K R Cockerham, and B R Manno
Department of Pharmacology and Therapeutics, Louisiana State University Medical Center, Shreveport 71130-3932.

Although the legitimate clinical use of amphetamine and amphetamine congeners is declining, the illicit use of these drugs remains high. There is a need for a rapid and conclusive method for detecting these compounds in routine urine drug testing, drug screening in drug rehabilitation centers, and as an aid in the diagnosis and treatment of potential overdoses. The Abbott ADx Amphetamine/Methamphetamine II assay (A/M II), a fluorescence polarization Immunoassay (FPIA), was compared to the Abbott TDx Amphetamine/Methamphetamine II assay (FPIA), the Syva enzyme-multiplied immunoassay technique (EMIT) and a gas chromatograph/mass spectrometry (GC/MS) method. Precision of the A/M II assay was evaluated on the ADx analyzer over a 14-day period in each of three modes of operation (batch, combination, and panel) and was based on within-run and between-run coefficients of variation (CVs). Within-run CVs for all three controls (low [L], medium [M], and high [H]) ranged from 0.40% to 10.60% and between run CVs ranged from 3.96% to 7.92%. Data indicated that the calibration curve was stable for 16 days. Each of the six calibrators and three controls were within 10% of their labeled concentrations when analyzed by GC/MS. Fifty routine clinical specimens from our laboratory and 74 specimens screened as positive for amphetamine or related compounds from a rehabilitation center were screened by ADx, TDx, and EMIT. Any specimen yielding a positive result by any of these three methods was confirmed by GC/MS. In-house controls, as well as clinical samples, which contained both amphetamine and methamphetamine in the same sample produced results greater than two times the expected response on the ADx and TDx.(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D007124 Immunoenzyme Techniques Immunologic techniques based on the use of: (1) enzyme-antibody conjugates; (2) enzyme-antigen conjugates; (3) antienzyme antibody followed by its homologous enzyme; or (4) enzyme-antienzyme complexes. These are used histologically for visualizing or labeling tissue specimens. Antibody Enzyme Technique, Unlabeled,Enzyme Immunoassay,Enzyme-Labeled Antibody Technique,Immunoassay, Enzyme,Immunoperoxidase Techniques,Peroxidase-Antiperoxidase Complex Technique,Peroxidase-Labeled Antibody Technique,Antibody Enzyme Technic, Unlabeled,Enzyme-Labeled Antibody Technic,Immunoenzyme Technics,Immunoperoxidase Technics,Peroxidase-Antiperoxidase Complex Technic,Peroxidase-Labeled Antibody Technic,Antibody Technic, Enzyme-Labeled,Antibody Technic, Peroxidase-Labeled,Antibody Technics, Enzyme-Labeled,Antibody Technics, Peroxidase-Labeled,Antibody Technique, Enzyme-Labeled,Antibody Technique, Peroxidase-Labeled,Antibody Techniques, Enzyme-Labeled,Antibody Techniques, Peroxidase-Labeled,Enzyme Immunoassays,Enzyme Labeled Antibody Technic,Enzyme Labeled Antibody Technique,Enzyme-Labeled Antibody Technics,Enzyme-Labeled Antibody Techniques,Immunoassays, Enzyme,Immunoenzyme Technic,Immunoenzyme Technique,Immunoperoxidase Technic,Immunoperoxidase Technique,Peroxidase Antiperoxidase Complex Technic,Peroxidase Antiperoxidase Complex Technique,Peroxidase Labeled Antibody Technic,Peroxidase Labeled Antibody Technique,Peroxidase-Antiperoxidase Complex Technics,Peroxidase-Antiperoxidase Complex Techniques,Peroxidase-Labeled Antibody Technics,Peroxidase-Labeled Antibody Techniques,Technic, Enzyme-Labeled Antibody,Technic, Immunoenzyme,Technic, Immunoperoxidase,Technic, Peroxidase-Antiperoxidase Complex,Technic, Peroxidase-Labeled Antibody,Technics, Enzyme-Labeled Antibody,Technics, Immunoenzyme,Technics, Immunoperoxidase,Technics, Peroxidase-Antiperoxidase Complex,Technics, Peroxidase-Labeled Antibody,Technique, Enzyme-Labeled Antibody,Technique, Immunoenzyme,Technique, Immunoperoxidase,Technique, Peroxidase-Antiperoxidase Complex,Technique, Peroxidase-Labeled Antibody,Techniques, Enzyme-Labeled Antibody,Techniques, Immunoenzyme,Techniques, Immunoperoxidase,Techniques, Peroxidase-Antiperoxidase Complex,Techniques, Peroxidase-Labeled Antibody
D008401 Gas Chromatography-Mass Spectrometry A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds. Chromatography, Gas-Liquid-Mass Spectrometry,Chromatography, Gas-Mass Spectrometry,GCMS,Spectrometry, Mass-Gas Chromatography,Spectrum Analysis, Mass-Gas Chromatography,Gas-Liquid Chromatography-Mass Spectrometry,Mass Spectrometry-Gas Chromatography,Chromatography, Gas Liquid Mass Spectrometry,Chromatography, Gas Mass Spectrometry,Chromatography, Mass Spectrometry-Gas,Chromatography-Mass Spectrometry, Gas,Chromatography-Mass Spectrometry, Gas-Liquid,Gas Chromatography Mass Spectrometry,Gas Liquid Chromatography Mass Spectrometry,Mass Spectrometry Gas Chromatography,Spectrometries, Mass-Gas Chromatography,Spectrometry, Gas Chromatography-Mass,Spectrometry, Gas-Liquid Chromatography-Mass,Spectrometry, Mass Gas Chromatography,Spectrometry-Gas Chromatography, Mass,Spectrum Analysis, Mass Gas Chromatography
D008694 Methamphetamine A central nervous system stimulant and sympathomimetic with actions and uses similar to DEXTROAMPHETAMINE. The smokable form is a drug of abuse and is referred to as crank, crystal, crystal meth, ice, and speed. Deoxyephedrine,Desoxyephedrine,Desoxyn,Madrine,Metamfetamine,Methamphetamine Hydrochloride,Methylamphetamine,N-Methylamphetamine,Hydrochloride, Methamphetamine,N Methylamphetamine
D011933 Reagent Kits, Diagnostic Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use. Diagnostic Reagent Kits,Diagnostic Reagents and Test Kits,Diagnostic Test Kits,In Vitro Diagnostic Device,In Vitro Diagnostic Devices,In Vitro Diagnostic Medical Device,In Vitro Diagnostic Medical Devices,Kits, Diagnostic Reagent,Diagnostic Reagent Kit,Diagnostic Test Kit,Kit, Diagnostic Reagent,Kit, Diagnostic Test,Kits, Diagnostic Test,Reagent Kit, Diagnostic,Test Kit, Diagnostic,Test Kits, Diagnostic
D005069 Evaluation Studies as Topic Works about studies that determine the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. Critique,Evaluation Indexes,Evaluation Methodology,Evaluation Report,Evaluation Research,Methodology, Evaluation,Pre-Post Tests,Qualitative Evaluation,Quantitative Evaluation,Theoretical Effectiveness,Use-Effectiveness,Critiques,Effectiveness, Theoretical,Evaluation Methodologies,Evaluation Reports,Evaluation, Qualitative,Evaluation, Quantitative,Evaluations, Qualitative,Evaluations, Quantitative,Indexes, Evaluation,Methodologies, Evaluation,Pre Post Tests,Pre-Post Test,Qualitative Evaluations,Quantitative Evaluations,Report, Evaluation,Reports, Evaluation,Research, Evaluation,Test, Pre-Post,Tests, Pre-Post,Use Effectiveness
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000661 Amphetamine A powerful central nervous system stimulant and sympathomimetic. Amphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulation of release of monamines, and inhibiting monoamine oxidase. Amphetamine is also a drug of abuse and a psychotomimetic. The l- and the d,l-forms are included here. The l-form has less central nervous system activity but stronger cardiovascular effects. The d-form is DEXTROAMPHETAMINE. Desoxynorephedrin,Levoamphetamine,Phenopromin,l-Amphetamine,Amfetamine,Amphetamine Sulfate,Amphetamine Sulfate (2:1),Centramina,Fenamine,Mydrial,Phenamine,Thyramine,levo-Amphetamine,Sulfate, Amphetamine,l Amphetamine,levo Amphetamine
D016231 Fluorescence Polarization Immunoassay Fluoroimmunoassay where detection of the hapten-antibody reaction is based on measurement of the increased polarization of fluorescence-labeled hapten when it is combined with antibody. The assay is very useful for the measurement of small haptenic antigens such as drugs at low concentrations. Immunoassay, Fluorescence Polarization,Polarization Fluoroimmunoassay,Fluorescence Polarization Immunoassays,Fluoroimmunoassay, Polarization,Fluoroimmunoassays, Polarization,Immunoassays, Fluorescence Polarization,Polarization Fluoroimmunoassays,Polarization Immunoassay, Fluorescence,Polarization Immunoassays, Fluorescence
D019966 Substance-Related Disorders Disorders related to substance use or abuse. Chemical Dependence,Drug Abuse,Drug Addiction,Drug Dependence,Drug Habituation,Drug Use Disorder,Drug Use Disorders,Organic Mental Disorders, Substance-Induced,Substance Abuse,Substance Dependence,Substance Related Disorder,Substance Use,Substance Use Disorder,Substance Use Disorders,Prescription Drug Abuse,Substance Addiction,Abuse, Drug,Abuse, Prescription Drug,Abuse, Substance,Addiction, Drug,Addiction, Substance,Chemical Dependences,Dependence, Chemical,Dependence, Drug,Dependence, Substance,Dependences, Chemical,Disorder, Drug Use,Disorder, Substance Related,Disorder, Substance Use,Disorders, Substance Related,Drug Abuse, Prescription,Habituation, Drug,Organic Mental Disorders, Substance Induced,Related Disorder, Substance,Related Disorders, Substance,Substance Abuses,Substance Uses,Use, Substance

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