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Time Sensitive

Ordering Recommendation

Use to detect and document fetal exposure to THC during approximately the last trimester of a full-term pregnancy. For panel testing that includes THC metabolite, refer to Drug Detection Panel and THC Metabolite, Meconium, Qualitative (3006373).

This test does not distinguish between the delta-8 and delta-9 forms of THC or their metabolites.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

All meconium (blackish material) excreted until milk/formula based stool (yellow-green) appears.

Specimen Preparation

Transport all available meconium (2g is preferred) to routine urine collection cup or Security Kit for Meconium/Umbilical Drug Detection (ARUP supply #51548) available online through eSupply using ARUP Connect™ or by contacting ARUP Client Services at 800-522-2787.

Storage/Transport Temperature

Room temperature.

Unacceptable Conditions
Remarks
Stability

Ambient: 1 week; Refrigerated: 3 months; Frozen: 1 year

Methodology

Qualitative Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Performed

Sun-Sat

Reported

1-4 days

Reference Interval

Interpretive Data

Positive cutoff: 5 ng/g
Methodology: Mass spectrometry

This test is designed to detect and document exposure that occurred during approximately the last trimester of a full-term pregnancy, to a common metabolite of pregnancy THC (which may be present in cannabis products). Alternative testing is available to detect other drug exposures. 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 deliveryn or drugs administered directly to the toinfant 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.

This test does not distinguish between the delta-8 and delta-9 forms of THC or their metabolites.For medical purposes only; not valid for forensic use.

Compliance Category

Laboratory Developed Test (LDT)

Note

Hotline History

N/A

CPT Codes

80349 (Alt code: G0480)

Components

Component Test Code* Component Chart Name LOINC
0092316 Carboxy-THC, MEC 27024-9
* 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

  • 9-Carboxy-THC
  • Cannabinoids
  • Cannabis
  • Dronabinol
  • Marijuana
  • Marinol
  • THC
Tetrahydrocannabinol (THC) Metabolite, Meconium, Qualitative