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Test ID NBLD0115 Drugs of Abuse Screen, Meconium 4

Reporting Name

Drugs of Abuse Screen, Meconium 4

Useful For

Identifying amphetamines (and methamphetamines), opiates, 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
THCM Carboxy-THC Confirmation, M Yes No

Testing Algorithm

Testing begins with immunoassay screen. Positive results are confirmed and quantified by liquid chromatography tandem mass spectrometry at an additional charge.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Meconium


Ordering Guidance


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

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) 21 days
  Refrigerated  21 days
  Ambient  72 hours

Reference Values

Negative

 

Positives are reported with a quantitative liquid chromatography tandem mass spectrometry result.

 

Cutoff concentrations by competitive chemiluminescent immunoassay:

Amphetamines: 100 ng/g

Methamphetamine: 100 ng/g

Benzoylecgonine (cocaine metabolite): 100 ng/g

Opiates: 100 ng/g

Tetrahydrocannabinol carboxylic acid (marijuana metabolite): 20 ng/g

Day(s) Performed

Monday through Saturday

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

80307

80324 (if appropriate)

80359 (if appropriate)

80353 (if appropriate)

80361 (if appropriate)

80365 (if appropriate)

80349 (if appropriate)

Report Available

1 to 2 days

Reject Due To

Grossly bloody Reject, Pink OK
Stool
Diapers		 Reject

Method Name

Competitive Chemiluminescent Immunoassay (CIA)

Forms

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

Secondary ID

60553