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Test Code DASM5 Drugs of Abuse Screen, Meconium 5


Advisory Information


For chain-of-custody testing, order DSM5X / Drugs of Abuse Screen 5, 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.


Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.

Useful For

Identifying amphetamines (and methamphetamines), opiates, phencyclidine (PCP), as well as metabolites of cocaine and marijuana in meconium specimens

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
PCPMC PCP Confirmation, Meconium 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.

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Reporting Name

Drugs of Abuse Screen, Meconium 5

Specimen Type

Meconium

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

Reject Due To

Other Grossly bloody reject, Pink OK Stool Diapers

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

Phencyclidine by ELISA: 20 ng/g

Day(s) and Time(s) Performed

Monday through Sunday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

80307

See individual reflex tests for appropriate CPT codes

LOINC Code Information

Test ID Test Order Name Order LOINC Value
DASM5 Drugs of Abuse Screen, Meconium 5 In Process

 

Result ID Test Result Name Result LOINC Value
32197 Amphetamine 26895-3
32199 Methamphetamine 27289-8
32201 Cocaine 26956-3
32203 Opiate 29158-3
32205 Phencyclidine 26859-9
32207 Tetrahydrocannabinol 26893-8
32208 Chain of Custody 77202-0