791626: Tetrahydrocannabinol (THC-COOH/THCV-COOH) | Labcorp

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4. 791626: Tetrahydrocannabinol (THC-COOH/THCV-COOH)

Tetrahydrocannabinol (THC-COOH/THCV-COOH) Test Number 791626Test number copied CPT 80349

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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