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Quest Diagnostics

Oral fluid drug testing certifications & cutoff levels

Oral fluid drug testing panels and cutoffs

Our employer oral fluid drug testing panels detect commonly abused drugs and yield reliable results, meaning you can screen with confidence.

Methodology

A two-tiered testing process ensures that positive oral fluid drug test results are re-checked and confirmed. The initial oral fluid specimen is screened using enzyme immunoassay (EIA), a proven reliable methodology for routine testing.

Confirmation

Any samples that are presumptively positive in the initial tests are confirmed, utilizing another portion of the oral fluid specimen, using either gas chromatography/mass spectrometry (GC/MS) or gas chromatography/mass spectrometry/mass spectrometry (GC/MS/MS) technology. 

Certifications

Quest Diagnostics Employer Solutions drug testing locations hold and maintain CAP, Substance Abuse and Mental Health Services Administration (SAMSHA), and Clinical Laboratory Improvement Amendments of 1988 (CLIA-88) certification as well as any applicable state licensure. 

Employers can test for a wide range of drugs:

Drug class

Screen cutoff

Confirmation cutoff

Amphetamines

150 ng/mL

120 ng/mL

Cocaine

15 ng/mL

6 ng/mL

Marijuana (THC)

3 ng/mL

1.5 ng/mL

Methamphetamines

120 ng/mL

120 ng/mL

Opiates

Codeine, morphine, hydrocodone,
hydromorphone, 6-AM

30 ng/mL

 

30 ng/mL*
Oxycodones

oxycodone, and oxymorphone		 30 ng/mL 30 ng/mL

 Phencyclidine (PCP)

 3 ng/mL

 1.5 ng/mL

*Confirmatory testing is 3 ng/mL for 6-AM.
 

View the Quantisal™  collection instructions.

Download our Quantisal™ brochure or read our FAQs.

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Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA certified laboratories that provide HIPAA covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA covered services. 

 

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