Drugs of Abuse - Meconium
Label Mnemonic: | MEC9 |
Epic Lab Code: | LAB4840 |
Downtime Form: | A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mail-out Laboratory
5231 RCP
356-8593
5231 RCP
356-8593
Specimen(s):
Meconium
Minimum:
Meconium. All meconium (blackish material) excreted until milk/formula
based stool (yellow-green) appears.
Preferred Minimum: 4 g or 3/4 inch cube on each side
Absolute Minimum: 2 g or 3/4 inch cube on each side
Preferred Minimum: 4 g or 3/4 inch cube on each side
Absolute Minimum: 2 g or 3/4 inch cube on each side
Turn Around
Time:
1-4 days upon receipt at reference laboratory
Reference Range:
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
Buprenorphine 40 ng/g 20 ng/g
Interpretive Data:
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. Interpretive
questions should be directed to the laboratory.
For medical purposes only; not valid for forensic use.
Note: If screen is positive, then confirmation by GC/MS and/or LC- MS/MS will be added.
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)
Buprenorphine (0.125 g required)
Marijuana (0.125 g required)
Benzodiazepines (0.5 g sample required)
Methadone (0.125 g sample required)
Phencyclidine - PCP (0.5 g sample required)
Barbiturates (0.5 g sample required)
For medical purposes only; not valid for forensic use.
Note: If screen is positive, then confirmation by GC/MS and/or LC- MS/MS will be added.
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)
Buprenorphine (0.125 g required)
Marijuana (0.125 g required)
Benzodiazepines (0.5 g sample required)
Methadone (0.125 g sample required)
Phencyclidine - PCP (0.5 g sample required)
Barbiturates (0.5 g sample required)
Methodology:
Qualitative Enzyme-Linked Immunosorbent Assay/Quantitative Gas
Chromatography-Mass Spectrometry/Quantitative Liquid Chromatography-
Tandem Mass Spectrometry
CPT Code:
80307 Screen; if positive add appropriate CPT code for drug
confirmed: 80349 Marijuana; 80353 Cocaine; 80361 Opiates; 83992
Phencyclidine; 80324 Amphetamines; 80345 Barbiturates; 80358
Methadone;
80346 Benzodiazepine; 80348 Buprenorphine