Test Code XDOUAC Drugs of Abuse Screen, Umbilical Cord
Additional Codes
EPIC: LAB60560
ARUP Test Code: 2006621
Methodology
Qualitative Liquid Chromatography/Tandem Mass Spectrometry
Useful to detect and document maternal drug use during approximately the last trimester of a full term birth.
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. Refrigerate.
- Unacceptable Conditions: Cords soaking in blood or other fluid. Formalin fixed. Tissue that is obviously decomposed.
- Stability: Ambient: 1 week; Refrigerated: 3 weeks; Frozen: 1 year
Reference Values
Negative
A comprehensive, interpretive report is provided.
See Drug Table - Umbilical Cord in Resources section for listing of drugs tested and cutoff limits.
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.