Sorted By Test Name - Mayo Medical Laboratories

FAMPH
90113
AMPHU
8257
MJ, Parks PM, et al: Drug screening of meconium in infants of drug-dependent mothers: and alternative
to urine testing. J Pediatr 1989;115:474-477 3. Ahanya SN, Lakshmanan J, Morgan BL, Ross MG:
Meconium passage in utero: mechanisms, consequences, and management. Obstet Gynecol Surv
2005;60:45-56 4. Kwong TC, Ryan RM: Detection of intrauterine illicit drug exposure by newborn drug
testing. National Academy of Clinical Biochemistry. Clin Chem 1997;43:235-242 5. Dixon SD: Effects of
transplacental exposure to cocaine and methamphetamine on the neonate. West J Med 1989;150:436-442
Amphetamines Screen and GC-MS Confirmation, Serum -
Forensic
Reference Values:
This specimen was screened by Immunoassay. Any positive result is
confirmed by Gas Chromatography with Mass Spectrometry (GC/MS).
The following threshold concentrations are used for this analysis:
DRUG SCREENING CONFIRMATION
THRESHOLD THRESHOLD
Amphetamines 50 ng/mL
Amphetamine 10 ng/mL
Methamphetamine 10 ng/mL
TEST PERFORMED BY
MEDTOX LABORATORIES, INC.
402 W. COUNTY ROAD D
ST. PAUL, MN. 55112
Amphetamines, Urine
Clinical Information: Amphetamines are sympathomimetic amines that stimulate the central nervous
system activity and, in part, suppress the 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, attention-deficit disorder/attention-deficit hyperactivity disorder and minimal brain
dysfunction. Because of their stimulant effects, the drugs are commonly sold illicitly and abused.
Physiological symptoms associated with very high amounts of ingested amphetamine or
methamphetamine include elevated blood pressure, dilated pupils, hyperthermia, convulsions, and acute
amphetamine psychosis.
Useful For: Confirming drug exposure involving amphetamines such as amphetamine and
methamphetamine, phentermine, methylenedioxyamphetamine (MDA),
methylenedioxymethamphetamine (MDMA), and methylenediaoxyethylamphetamine (MDEA). MDA is
a metabolite of MDMA and MDEA.
Interpretation: The presence of amphetamines in urine at concentrations >500 ng/mL is a strong
indicator that the patient has used these drugs within the past 3 days. This test will produce true-positive
results for urine specimens collected from patients who are administered Adderall and Benzedrine
(contain amphetamine); Desoxyn and Vicks Inhaler (contain methamphetamine); Selegiline (metabolized
to methamphetamine and amphetamine); and clobenzorex, famprofazone, fenethylline, fenproporex, and
mefenorex, which are amphetamine pro-drugs.
Reference Values:
Negative
Positives are reported with a quantitative GC-MS result.
Cutoff concentrations:
IMMUNOASSAY SCREEN
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