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Test Code
MEMAR
Test Name
Cannabinoids Meconium
CPT Codes
Alternate CPT G0480
Expected Turnaround Time
1 - 4 days
Clinical Utility
Use to detect and document fetal exposure to THC during approximately the last trimester of a full-term pregnancy.
Specimen and Container Info

Specimen Type: Meconium

Collection Container: Sterile Container

Desired Specimen Volume: 2 g
Collection Instructions
  1. Collect meconium (blackish material) until milk/formula-based stool appears (yellow-green) in a sterile container.
Processing and Submission Instructions
  1. Transport 2g of meconium in the original collection container.
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

7 days

Refrigerated

3 month

Frozen

1 year
Methodology
Qualitative Liquid Chromatography-Tandem Mass Spectrometry
Reference Intervals

See patient report.
Limitations

This test does not distinguish between the delta-8 and delta-9 forms of THC or their metabolites.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 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, or drugs administered directly to the infant after birth 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.
Reference Lab
ARUP Laboratories
Testing Schedule
Routine, daily
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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