Drugs of Abuse Confirmation/Quantitation - Cannabinoids (9-carboxy-THC) - Urine
0090369
 
Ordering Recommendation
Mnemonic
CDCO THC
Methodology
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Sun-Sat
Reported
1-4 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Random urine.  
Specimen Preparation
Transfer 4 mL urine with no additives or preservatives to an ARUP Standard Transport Tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Room temperature.  
Unacceptable Conditions
Specimens exposed to repeated freeze/thaw cycles.  
Remarks
 
Stability
Ambient: 1 week; Refrigerated: 1 month; Frozen: 3 years  
Reference Interval
Interpretive Data
Drugs covered: 9-carboxy-THC

Methodology:
Liquid Chromatography-Tandem Mass Spectrometry

Positive cutoff:
5 ng/mL

The drug analyte detected in this assay, 9-carboxy THC, is a metabolite of delta-9-tetrahydrocannabinol (THC). Detection of 9-carboxy THC suggests use of, or exposure to, a product containing THC. This test cannot distinguish between prescribed or non-prescribed forms of THC, nor can it distinguish between active or passive use. The 9-carboxy THC metabolite can be detected in urine for several weeks. Normalization of results to creatinine concentration can help document elimination or suggest recent use, when specimens are collected at least one week apart.

For medical purposes only; not valid for forensic use.
Note
CPT Code(s)
82542
Components
Component Test Code*Component Chart Name
0090369Drug Confirmation, Cannabinoids, Urine
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • 9-Carboxy-THC
  • Cannabinoids
  • Cannabis
  • Dronabinol
  • Marijuana
  • Marinol
  • Pain Management
  • Pain Management, Marijuana Metabolite, Quantitative, with medMATCH, Urine
  • Pain Management, Marijuana Metabolite, with Confirmation with medMATCH, Urine
  • THC