Cocaine Metabolite, Serum or Plasma, Quantitative
Test Mnemonic
COCRFX
CPT Codes
- 80353 / G0480 - QTY (1)
Includes
- Benzoylecgonine
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Potassium oxalate/sodium fluoride (Gray) | Refrigerated | Do not use gel separator tubes. Separate plasma from cells ASAP or within 2 hours of collection. Transfer plasma to standard aliquot tube. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Refrigerated | Do not use gel separator tubes. Separate serum from cells ASAP or within 2 hours of collection. Transfer serum to standard aliquot tube. | |
| 1 mL | Plasma | Sodium heparin (Green) | Refrigerated | Do not use gel separator tubes. Separate plasma from cells ASAP or within 2 hours of collection. Transfer plasma to standard aliquot tube. | |
| 1 mL | Plasma | EDTA (Lavender) | Refrigerated | Do not use gel separator tubes. Separate plasma from cells ASAP or within 2 hours of collection. Transfer plasma to standard aliquot tube. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | After separation from cells: 2 weeks |
| Frozen | After separation from cells: 3 years (Avoid repeated freeze/thaw cycles) |
| Ambient | After separation from cells: 1 week |
Days Performed
Sun - Sat
Turnaround Time
2 - 7 days
Methodology
| Name | Description |
|---|---|
| Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) |
Reference Range
Special Info
This test may be ordered, or may be a reflex from Drug Screen 9 Panel, Serum or Plasma (DRGSC9). Specimens that are hemolyzed or collected in gel separator tubes will be rejected. This test is New York DOH approved.
Clinical Info
This test is useful to detect exposure to cocaine.