Test Directory

Amphetamines Confirmation, Random, Urine

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Updated Test Information:

Test Description
Amphetamines Confirmation, Random, Urine
Test ID
AMPHU
General Information
Useful for:
Confirming drug exposure involving amphetamines such as amphetamine and methamphetamine, phentermine, methylenedioxyamphetamine (MDA), methylenedioxymethamphetamine (MDMA), and methylenediaoxyethylamphetamine (MDEA)
Specimen Type
Urine
Specimen Requirements
Urine Cup
Additional Processing Details
1. For situations where chain of custody is required, a Chain-of-Custody Kit (T282) is available. For chain-of-custody
testing, order AMPHX / Amphetamines Confirmation, Chain of Custody, Random, Urine.
2. Additional drug panels and specific requests are available. Call 800-533-1710 or 507-266-5700.
3. If urine creatinine is required or adulteration of the sample is suspected, order ADULT / Adulterants Survey,
Random, Urine.
Stability
Urine Refrigerated (preferred) 28 days
Ambient 28 days
Frozen 28 days
Unacceptable Specimen Conditions
Gross hemolysis OK
Gross icterus OK
Limitations
Over-the-counter sympathomimetics such as ephedrine and phenylpropanolamine are occasionally detected in the
screening immunoassay.
Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Estimated TAT
2-5 days
Testing Schedule
Monday-Saturday
Minimum Sample Volume
2.5 mL
Reference Range
Negative
Cutoff concentrations:
AMPHETAMINE BY LC-MS/MS
<25 ng/mL
METHAMPHETAMINE BY LC-MS/MS
<25 ng/mL
PHENTERMINE BY LC-MS/MS
<25 ng/mL
METHYLENEDIOXYAMPHETAMINE BY LC-MS/MS
<25 ng/mL
METHYLENEDIOXYMETHAMPHETAMINE BY LC-MS/MS
<25 ng/mL
PSEUDOEPHEDRINE/EPHEDRINE BY LC-MS/MS
<25 ng/mL reported as negative
Performing Lab
Mayo
LOINC Code(s)
20410-7, 20557-5, 16235-4, 58707-1, 20545-0, 18358-2, 69050-3