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Quest Diagnostics

Hair testing certifications & cutoff levels

Hair testing panels and cutoffs

Our hair drug testing panels detect commonly abused drugs and yield accurate, reliable results. 

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

We test for the standard 5 illicit drug classes: amphetamines (methamphetamine/MDMA), opiates (codeine/morphine/6-AM), cocaine, marijuana metabolite (THC carboxylic acid metabolite), and PCP. We also offer screening and confirmation testing for expanded opiates (hydromorphone, hydrocodone, oxymorphone, and oxycodone). 

  

Drug Class

Screen cutoff

Confirmation cutoff
Methamphetamine

500 pg/mg

500 pg/mg
MDMA

500 pg/mg

500 pg/mg
Amphetamine*

500 pg/mg

500 pg/mg
MDA* 500 pg/mg 500 pg/mg
Cocaine / Metabolites 500 pg/mg 500 pg/mg
Benzoylecgonine 500 pg/mg 500 pg/mg
Marijuana Metabolite 1.0 pg/mg

0.1 pg/mg
Opiates (MOR &/or HYM) 200 pg/mg  200 pg/mg 
Opiates (COD &/or HYC) 200 pg/mg  200 pg/mg 
6-Acetymorphine (6-AM) 200 pg/mg 200 pg/mg
Oxycodone** 200 pg/mg 200 pg/mg
Oxymorphone** 200 pg/mg 200 pg/mg
Phencyclidine (PCP)  300 pg/mg 300 pg/mg 


*AMP/MDA-specific screening available as an add‐on.

**Expanded Opiates-specific screening available as an add-on.
 

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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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