Test Code AMPHM Amphetamine-Type Stimulants Confirmation, Meconium
Performing Laboratory
Mayo Clinic Laboratories in RochesterSpecimen Type
MeconiumOrdering Guidance
For chain-of-custody testing, order AMPMX / Amphetamine-Type Stimulants Confirmation, Chain of Custody, Meconium.
Specimen Required
Supplies: Stool container, Small (Random), 4 oz (T288)
Container/Tube: Stool container
Specimen Volume: 1 g (approximately 1 teaspoon)
Collection Instructions: Collect entire random meconium specimen.
Specimen Minimum Volume
0.3 g (approximately 1/4 teaspoon)
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Meconium | Frozen (preferred) | 28 days | |
Ambient | 28 days | ||
Refrigerated | 28 days |
Reference Values
Negative
Positives are reported with a quantitative liquid chromatography tandem mass spectrometry (LC-MS/MS) result.
Cutoff concentrations for LC-MS/MS testing:
Amphetamine: 20 ng/g
Methamphetamine: 20 ng/g
3,4-Methylenedioxyamphetamine: 20 ng/g
3,4-Methylenedioxyethylamphetamine: 20 ng/g
3,4-Methylenedioxymethamphetamine: 20 ng/g
Day(s) Performed
Monday through Sunday
CPT Code Information
80324
80359
G0480 (if appropriate)
Report Available
2 to 3 daysSpecimen Retention Time
2 weeksReject Due To
Grossly bloody | Reject; Pink OK |
Stool Diapers |
Reject |