Drug Toxicology Marijuana, with Confirmation, Oral Fluid

Last Modified: 3/25/2019 2:01:24 PM


Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  If donor's mouth is not empty immediately prior to collection, have subject rinse his/her mouth with water (up to 4 oz) and wait a minimum of 10 minutes before collecting a specimen.
Specimen Requirements:

3 mL oral fluid submitted in an Oral-Eze® collection device

Collection Instructions:  
Minimum Volume: 2.0 mL Oral Fluid
Transport & Storage: Temperature/Stability: 72 hours Ambient
7 days Refrigerated
30 days Frozen


Store refrigerated 2-8°C if not delivered to the testing site (Quest) within 48 hours of collection
Rejection Criteria: Specimens in a non-Oral Eze(R) collection; insufficient volume
Reference Range: Refer to Interpretive Results 
Critical Ranges:  
Test Comments:  If screening drug class result is equal to or greater than the cutoff, then confirmation testing will be performed at an additional charge (CPT code(s): 80353).
Methodology: Mass Spectrometry
Clinical Significance:

Oral fluid is composed of saliva, mixed with buccal and mucosal transudates, cellular debris, bacteria, and residue of ingested products. Oral fluid as a test matrix shows promise for detection of recent drug use, and a significant body of scientific literature documents drug disposition and detection times. Researchers comparing effectiveness of oral fluid and urine drug testing found a similar pattern and frequency of positive drug test results in the general workforce over the same general period. Similarly in pain clinics, the pattern of licit and illicit drugs and metabolites observed in oral fluid paralleled results reported for urine, with some minor differences in detection rates for different drug classes. In some cases, oral fluid testing may be an acceptable alternative or the only available matrix. As an ultra-filtrate of blood, however, it shares the limitations of a decreased window of detection versus conventional urine drug testing.

Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Turn Around Time: 3 to 5 days
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: MARDO
EPIC Test Code: LAB2982
Send Out Test Code: 93981
Alternate Test Names: Drug Oral Marijuana, Quant; DRUG ORAL, MARIJUANA, QNT; Drug Toxicology Marijuana, Quantitative, Oral Flui; Oral Fluid, Marijuana; Oral Fluid, THC
Included Tests: THC
CPT Coding: 80307 (80349)

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