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HelpTest Code DASM4 Drugs of Abuse Screen, Meconium 4
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| AMPHM | Amphetamines, Confirmation, M | Yes | No |
| COKEM | Cocaine and Metabolites, Confirm, M | Yes | No |
| OPATM | Opiate Confirmation, M | Yes | No |
| THCM | Carboxy-THC Confirmation, M | Yes | No |
Testing Algorithm
Testing begins with immunoassay screen. Positives are confirmed and quantitated by liquid-chromatography/tandem-mass spectrometry (LC-MS/MS) at an additional charge.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
MeconiumAdvisory Information
For chain-of-custody testing, order DSM4X / Drugs of Abuse Screen 4, Chain of Custody, Meconium.
Specimen Required
Supplies: Stool container, Small (Random), 4 oz (T288)
Container/Tube: Stool container (T288)
Specimen Volume: 1 g (approximately 1 teaspoon)
Collection Instructions: Collect entire random meconium specimen.
Specimen Minimum Volume
0.45 g (approximately 0.5 teaspoon)
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Meconium | Frozen (preferred) | 14 days | |
| Refrigerated | 24 hours |
Reference Values
Negative
Positives are reported with a quantitative LC-MS/MS result.
Cutoff concentrations
Amphetamines by ELISA: 100 ng/g
Methamphetamine by ELISA: 100 ng/g
Benzoylecgonine (cocaine metabolite) by ELISA: 100 ng/g
Opiates by ELISA: 100 ng/g
Tetrahydrocannabinol carboxylic acid (marijuana metabolite) by ELISA: 20 ng/g
Day(s) and Time(s) Performed
Monday through Saturday; Varies
CPT Code Information
80307
See individual reflex tests for appropriate CPT codes
Reject Due To
| Other | Grossly bloody reject, Pink OK Stool Diapers |
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.