Mayo Test Catalog, (Sorted By Test Name) - Mayo Medical ...

DAAMP
505341
mass spectrometry (LC-MS/MS) with the exception of ethanol. Positive ethanol results are reported
quantitatively directly from immunologic testing.
Useful For: Detecting drug abuse involving amphetamines, barbiturates, benzodiazepines, cocaine,
methadone, opiates, phencyclidine, propoxyphene, tetrahydrocannabinol, and ethanol This test is intended
to be used only by a qualified drug treatment counselor or physician.
Interpretation: A positive result indicates that the patient has used the drugs detected in the recent
past. For information about drug testing, including estimated detection times, see Drugs of Abuse Testing
at http://www.mayomedicallaboratories.com/articles/drug-book/index.html Creatinine and specific gravity
are measured as indicators of specimen dilution.
Reference Values:
Negative
The specific drug identified will be reported.
EMIT cutoff concentrations
Amphetamines: 500 ng/mL
Barbiturates: 200 ng/mL
Benzodiazepines: 200 ng/mL
Cocaine (benzoylecgonine-cocaine metabolite): 150 ng/mL
Methadone: 300 ng/mL
Opiates: 300 ng/mL
Phencyclidine: 25 ng/mL
Propoxyphene: 300 ng/mL
THC: 50 ng/mL
Ethanol: 10 mg/dL
Results of this test are confirmed and should be considered definitive. Specimens are normally kept for 2
weeks after Mayo Medical Laboratories New England receipt date.
Clinical References: Porter WF, Moyer TP: Clinical toxicology. In Tietz Textbook of Clinical
Chemistry. Fourth edition. Edited by CA Burtis, ER Ashwood. Philadelphia, PA, WB Saunders Company,
1993, pp 1155-1235
Drug of Abuse, Amphetamine Screen with GC-MS Confirmation,
Urine
Clinical Information: Amphetamines are sympathomimetic amines that stimulate central nervous
system activity and, in part, suppress appetite. Phentermine, amphetamine, and methamphetamine are
prescription drugs for weight loss. All of the other amphetamines are Class I (distribution prohibited)
compounds. In addition to their medical use as anorectic drugs, they are used in the treatment of
narcolepsy and minimal brain dysfunction. Because of their stimulant effects, the drugs are commonly
sold illicitly and abused. Physiological symptoms associated with amphetamine overdose include elevated
blood pressure, dilated pupils, hyperthermia, convulsions and acute psychosis.
Useful For: Confirming drug abuse involving amphetamines such as amphetamine and
methamphetamine, phentermine,, methylenediaoxyethylamphetamine (MDEA), and
methylene-diaoxyethylamphetamine (MDA, a metabolite of MDMA and MDEA)
Interpretation: The presence of amphetamines in urine concentrations >499 ng/mL is a strong
indicator that the patient has used 1 of these drugs within the past 3 days. This test is very specific and
does not produce a false-positive result when over-the-counter drugs are present in the specimen. This test
will produce true-positive results for urine specimens collected from patients who are administered
Adderall and Benzedrine (which contain amphetamine); Desoxyn and Vicks Inhaler (which contain
methamphetamine); Selegiline (metabolizes to methamphetamine and amphetamine); and clobenzorex,
famprofazone, fenethylline, fenproporex, and mefenorex (which are amphetamine pro-drugs).
Reference Values:
Negative
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