Drugs of Abuse - Meconium Qualitative
| Label Mnemonic: | MEC9 |
| Epic code: | LAB4840 |
| Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Meconium
Collection Medium:
) |
| 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:
1-3 days upon receipt at reference laboratory
Reference Range:
| Drugs/Drug Classes | Cutoff Concentrations (ng/g) | Drugs/Drug Classes | Cutoff Concentrations (ng/g) |
|---|---|---|---|
| Buprenorphine | 20 | Amphetamine | 20 |
| Norbuprenorphine | 20 | Benzoylecgonine | 20 |
| Naloxone | 20 | m-OH-Benzoylecgonine | 20 |
| Codeine | 20 | Cocaethylene | 20 |
| Dihydrocodeine | 20 | Cocaine | 20 |
| Fentanyl | 10 | MDMA (Ecstasy) | 20 |
| Hydrocodone | 20 | Methamphetamine | 20 |
| Norhydrocodone | 20 | Phentermine | 20 |
| Hydromorphone | 20 | Alprazolam | 5 |
| Meperidine | 20 | Alpha-OH-Alprazolam | 5 |
| Methadone | 10 | Butalbital | 50 |
| Methadone metabolite | 10 | Clonazepam | 5 |
| 6-Acetylmorphine | 20 | 7-Aminoclonazepam | 5 |
| Morphine | 20 | Diazepam | 5 |
| Methylphenidate | 20 | Lorazepam | 20 |
| Oxycodone | 20 | Midazolam | 20 |
| Noroxycodone | 20 | Alpha-OH-Midazolam | 20 |
| Oxymorphone | 20 | Nordiazepam | 20 |
| Tapentadol | 20 | Oxazepam | 20 |
| Tramadol | 20 | Phenobarbital | 200 |
| N-desmethyltramadol | 20 | Temazepam | 20 |
| O-desmethyltramadol | 20 | Zolpidem | 10 |
| Gabapentin | 20 | Phencyclidine (PCP) | 10 |
Interpretive Data:
Detection of drugs in meconium is intended to reflect maternal drug use during approximately the last trimester of a full-term pregnancy. The pattern and frequency of drug(s) used by the mother cannot be determined by this test. A negative result does not exclude the possibility that a mother used drugs during pregnancy. Detection of drugs in meconium depends on the extent of maternal drug use, as well as drug stability, unique characteristics of drug deposition in meconium, and the performance of the analytical method. Drugs administered during labor and delivery may be detected. Detection of drugs in meconium does not insinuate impairment and may not affect outcomes for the infant. Interpretive questions should be directed to the laboratory.
For medical purposes only; not valid for forensic use.
For medical purposes only; not valid for forensic use.
Methodology:
Qualitative Liquid Chromatography/Tandem Mass Spectrometry
CPT Code:
80326, 80347, 80364, 80355