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HelpTest Code AMPHU Amphetamines Confirmation, Random, Urine
Additional Codes
ALAB: YAC
Powerchart: Amphetamine Confirmation Clinical Urine
Reporting Name
Amphetamines Confirmation, UUseful For
Confirming drug exposure involving amphetamines such as amphetamine and methamphetamine, phentermine, pseudoephedrine/ephedrine, methylenedioxyamphetamine (MDA), and methylenedioxymethamphetamine (MDMA).
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineOrdering Guidance
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.
Additional drug panels and specific requests are available; call 800-533-1710.
Additional Testing Requirements
If urine creatinine is required or adulteration of the sample is suspected, the following test should also be ordered, ADULT / Adulterants Survey, Urine.
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Plastic urine container
Submission Container/Tube: Plastic, 5-mL tube
Specimen Volume: 1 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative
Additional Information:
1. No specimen substitutions.
2. STAT requests are not accepted for this test.
3. Submitting less than 1 mL will compromise our ability to perform all necessary testing.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 28 days | |
| Ambient | 28 days | ||
| Frozen | 28 days |
Reference Values
Negative
Cutoff concentrations by liquid chromatography tandem mass spectrometry:
Amphetamine: <25 ng/mL
Methamphetamine: <25 ng/mL
Phentermine: <25 ng/mL
Methylenedioxyamphetamine: <25 ng/mL
Methylenedioxymethamphetamine: <25 ng/mL
Pseudoephedrine/ephedrine: <25 ng/mL reported as negative
Day(s) Performed
Monday through Friday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
80325
80359
G0480 (if appropriate)
If Medicare, G0480 is covered under a medical necessity rule; obtain an ABN.
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| AMPHU | Amphetamines Confirmation, U | 97161-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 2934 | Amphetamine-by LC-MS/MS | 20410-7 |
| 29278 | Phentermine-by LC-MS/MS | 20557-5 |
| 2550 | Methamphetamine-by LC-MS/MS | 16235-4 |
| 29279 | Pseudoephedrine/Ephedrine-by LC-MS/MS | 58707-1 |
| 29280 | MDA (Ecstasy metabolite)-by LC-MS/MS | 20545-0 |
| 29281 | MDMA (Ecstasy)-by LC-MS/MS | 18358-2 |
| 21197 | Amphetamines Interpretation | 69050-3 |
Report Available
3 to 5 daysReject Due To
| Gross hemolysis | OK |
| Gross icterus | OK |
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Secondary ID
8257Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.