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HelpTest Code XTHCUC THC (Marijuana Metabolite), Umbilical Cord, Qualitative
Additional Codes
EPIC: LAB8007
ARUP Test Code: 3000256
Methodology
Qualitative Liquid Chromatography/Tandem Mass Spectrometry
Useful to detect in utero exposure to cannabis (marijuana) in neonates, consistent with maternal use during approximately the last trimester of pregnancy.
Performing Laboratory
ARUP Laboratories
Report available: 1-3 days
Specimen Requirements
Umbilical Cord (At least 6 inches)
Drain and discard any blood. Rinse the exterior of the cord segment with normal saline or sterile water. Pat the cord dry and transport at least 6 inches of umbilical cord in a routine urine collection cup.
Transport frozen.
Unacceptable Conditions: Cords soaking in blood or other fluid. Formalin fixed. Tissue that is obviously decomposed.
Stability: Ambient: 3 days; Refrigerated: 2 weeks; Frozen: 1 year
Reference Values
Negative
An interpretive report is provided.
Day(s) Test Set Up
Daily, Sunday-Saturday
Interpretive Information
Detection of drugs in umbilical cord tissue is intended to reflect maternal drug use during 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 umbilical cord tissue depends on extent of maternal drug use, as well as drug stability, unique characteristics of drug deposition in umbilical cord tissue, and the performance of the analytical method. Drugs administered during labor and delivery may be detected. Detection of drugs in umbilical cord tissue does not insinuate impairment and may not affect outcomes for the infant.