Cocaine Analysis - Whole Blood
Use
This test is used to detect the presence of cocaine and its metabolite, benzoylecgonine, in whole blood. It is helpful in assessing cocaine use, potentially aiding in clinical decisions regarding substance use, addiction management, and forensic investigations. A positive result indicates the presence of cocaine or its metabolites in the bloodstream, which might have implications for medical treatment, legal investigations, or employment-related drug testing.
Special Instructions
In cases where the initial screening for cocaine in whole blood is positive, a confirmatory test (FCOKR) is performed using Gas Chromatography with mass spectrometry (GC/MS) at an additional charge.
Limitations
This test may not differentiate between recent use and low-level exposure of cocaine. Cross-reactivity with other substances is possible with the initial immunoassay. Therefore, positive screens are confirmed with a more specific GC/MS analysis. It is also not suitable for quantifying exact drug levels, nor can it determine the exact timing of dosage or exposure.
New York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 16633-0
- 73823-7
Result Turnaround Time
5-9 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
7 mL
Minimum Volume
3 mL
Container
Plastic vial, preserved in purple-top (EDTA), green-top (sodium-heparin), or grey-top (NaF/oxalate) tubes
Collection Instructions
Draw blood in a purple-top (EDTA), green-top (sodium-heparin), or grey-top (NaF/oxalate) tube(s).
Storage Instructions
Refrigerated preferred.
Causes for Rejection
Not applicable (NA) for visible hemolysis, lipemia, or icterus issues.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 72 hours |
| Refrigerated | 14 days |
| Frozen | 180 days |