Drugs of Abuse Panel, Meconium - Screen with Reflex to Confirmation/Quantitation
0092516
Ordering Recommendation
 
Mnemonic
MEC 9
Methodology
Qualitative Enzyme-Linked Immunosorbent Assay/Quantitative Gas Chromatography-Mass Spectrometry/Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Sun-Sat
Reported
1-4 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Meconium. All meconium (blackish material) excreted until milk/formula based stool (yellow-green) appears.  
Specimen Preparation
  
Storage/Transport Temperature
All meconium available (4 g is preferred) at 20-25°C. (Min: 2 g or 3/4 inch cube on each side)  
Unacceptable Conditions
  
Remarks
  
Stability
Ambient: 1 week; Refrigerated: 3 months; Frozen: 1 year  
Reference Interval
 
 
Drugs Covered and Cutoff Concentrations
Drug Screen Confirmation
Marijuana 30 ng/g 5 ng/g
Cocaine 30 ng/g 20 ng/g
Opiates 30 ng/g 20 ng/g
Phencyclidine 15 ng/g 10 ng/g
Amphetamines 30 ng/g 20 ng/g
Barbiturates 75 ng/g 50 ng/g
Methadone 40 ng/g 10 ng/g
Benzodiazepines 75 ng/g 20 ng/g
Propoxyphene 75 ng/g 10 ng/g
Interpretive Data
Meconium begins to form between the 12th and 16th week of gestation. Meconium drug testing can detect maternal drug use during the last 4 to 5 months of pregnancy. A negative result does not exclude the possibility that a mother used drugs during pregnancy. Detection of drug use depends on the quantity and quality of the specimen tested as well as the pattern and frequency of drug(s) used by the mother. Although not likely, drugs administered during labor and delivery may be detected in meconium. Interpretive questions should be directed to the laboratory.

The concentration at which the screening test can detect a drug or metabolite varies within a drug class. The concentration value must be greater than or equal to the cutoff to be reported as positive.

For medical purposes only; not valid for forensic use.

See Compliance Statement B: www.aruplab.com/CS  
Note
If the specimen screens positive, then Confirmation/Quantitation by GC/MS and/or LC-MS/MS will be added. Additional charges apply.

Unless ARUP is otherwise notified, reflex confirmation testing will be performed in the following order of priority:

Amphetamines (0.125 g sample required)
Cocaine (0.5 g sample required)
Opiates (0.125 g required)
Marijuana (0.125 g required)
Benzodiazepines (0.5 g sample required)
Methadone (0.125 g sample required)
Propoxyphene (0.125 g sample required)
Phencyclidine - PCP (0.5 g sample required)
Barbiturates (0.5 g sample required)
CPT Code(s)
80101 x9 (HCPCS: G0431); if positive; add appropriate CPT code(s): 82542; 82520; 83925; 83992; 82145; 82205; 80154; 83840; 83925
Components
Component Test Code*Component Chart Name
0092020Marijuana, Meconium
0092021Cocaine, Meconium
0092022Opiates, Meconium
0092023Phencyclidine, Meconium
0092024Amphetamines, Meconium
0092318Methadone, Meconium
0092319Barbiturates, Meconium
0092517Meconium Comments
0092518Benzodiazepines, Meconium
0092519Propoxyphene, Meconium
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Pain Management