Test Details
Methodology
Chromatography with Mass Spectrometry
Result Turnaround Time
5 - 7 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Detect the presence of secondary metabolite of tetrahydrocannabinol to evaluate use of herbal marijuana versus pharmaceutical THC.
Specimen Requirements
Specimen
Urine (random)
Volume
20 mL
Minimum Volume
10 mL
Container
Plastic urine container without preservative
Reference Range
The presence of THCV metabolite in urine indicates prior use of marijuana or a related product and cannot be the result of the sole use of Marinol®.
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Causes for Rejection
Urine from preservative tube
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 791626 | THC-COOH/THCV-COOH | 791625 | THC-COOH | ng/ml | 3436-3 | |
| 791626 | THC-COOH/THCV-COOH | 791627 | THCV-COOH | ng/ml | 75651-0 | |
| Order Code | 791626 | |||||
| Order Code Name | THC-COOH/THCV-COOH | |||||
| Order Loinc | ||||||
| Result Code | 791625 | |||||
| Result Code Name | THC-COOH | |||||
| UofM | ng/ml | |||||
| Result LOINC | 3436-3 | |||||
| Order Code | 791626 | |||||
| Order Code Name | THC-COOH/THCV-COOH | |||||
| Order Loinc | ||||||
| Result Code | 791627 | |||||
| Result Code Name | THCV-COOH | |||||
| UofM | ng/ml | |||||
| Result LOINC | 75651-0 |