Cocaine and Metabolites, Umbilical Cord Tissue
Use
This test identifies exposure to cocaine and its metabolites in neonates via analysis of umbilical cord tissue, providing evidence of in utero drug exposure. It is part of a non-orderable profile (see FCDSU Comprehensive Drug Screen, Umbilical Cord Tissue) and situates within newborn toxicology to confirm maternal cocaine use. Confirmation testing is performed at no additional charge when appropriate.
Special Instructions
Not provided.
Limitations
Reporting limit is determined individually for each analysis. All specimens are evaluated for suitability and may be rejected based on laboratory assessment. Clinical interpretation and limitations should refer to external clinical information sources (e.g., NMS Labs clinical information), as Mayo content refers users there for detailed physiology and pathophysiology.
New York Approved
Methodology
Mass Spectrometry (LC-MS/MS)
Biomarkers
Benzoylecgonine
AnalyteCocaethylene
AnalyteCocaine
Analyte
LOINC Codes
- 97222-4 - BZE TissCo Ql Scn
- 97232-3 - Cocaethylene TissCo Ql Scn
- 97234-9 - Cocaine TissCo Ql Scn
Result Turnaround Time
3-7 days
Related Documents
For more information, please review the documents below
Specimen
Tissue
Volume
Not provided
Minimum Volume
Not provided
Storage Instructions
Refrigerated (preferred) 7 days; Frozen 14 days.
Causes for Rejection
All specimens will be evaluated by the processing and performing laboratories for test suitability.
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 7 days |
| Frozen | 14 days |