Tetrahydrocannabinol (THC), Screen With Reflex Confirmation, Serum
Use
Detect the presence of tetrahydrocannabinol (marijuana constituent).
Special Instructions
If a reflex test is performed, additional charges and CPT codes will apply. Serum should be separated from cells within two hours of venipuncture. Use a red-top (no additive) tube, and submit the serum in a plastic transport tube.
Limitations
The test detects the presence of THC at a threshold of 5.0 ng/ml. Results can be affected by cross-reactivity with other substances and medications. It is not intended to determine the level of impairment or intoxication. The test has not been cleared or approved by the FDA, which may affect its legal admissibility.
Methodology
Mass Spectrometry
Biomarkers
LOINC Codes
- 8172-9
- 8172-9
- 48943-5
- 73935-9
- 48944-3
- 48934-4
- 82964-8
Result Turnaround Time
3-10 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
7 mL
Minimum Volume
3 mL
Container
Red-top (no additive) tube
Collection Instructions
Serum should be separated from cells within two hours of venipuncture. Submit serum in plastic transport tube.
Storage Instructions
Room temperature. For storage beyond 3 days, specimen should be refrigerated or frozen.