A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
THC CONFIRMATION
MessageThis code is for internal use only.
Test Code
DMTHC
CPT Codes
80349
Includes
(-)delta 9-THC
Preferred Specimen
1 Yellow round bottom tube is preferred
Minimum Volume
10 mL (1 full yellow tube)
Other Acceptable Specimens
or Sterile Container
Instructions
None
Transport Temperature
Refrigerate or freeze
Specimen Stability
- 2-8°C up to 7 days
- Frozen samples will be accepted up to 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
QNS (quantity not sufficient). Samples exposed to repeated freeze/thaw cycles will be rejected.
Methodology
LC/MS/MS
Setup Schedule
M, Tu, W, Th, F
Report Available
Report available within 24-48 hours of receipt at the performing laboratory.
Reference Range
Mass spec reporting limit for THC is 10 ng/mL
Clinical Significance
This test is used for quantitative confirmation of a positive drug screen. Positive Chain of Custody screens are kept frozen for 1 year. Positive Non-Chain of Custody screens are kept frozen for 30 days.
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NCHMS (LC/MS/MS, Mass Spec)
Last Updated: June 6, 2023