Table 2 Oral Fluid Drug Concentration Limits Drugs or classes of drugs
Screening concentration equal to or in excess of ng/mL
Confirmation concentration equal to or in excess of ng/mL
4
Cannabis metabolite (THC)
2
Cocaine metabolite
20 ---
--- 8
- Cocaine or Benzoylecgonine
Opioids
40 --- --- --- --- --- ---
--- 40 40 40 40 40 40
- Codeine - Morphine - Hydrocodone - Hydromorphone - Oxycodone - Oxymorphone
Acetylmorphine
---
4
Phencyclidine
10
10 --- 50 50 50 50
Amphetamines
50 --- --- --- ---
- Amphetamines - Methamphetamine
-MDMA 1 - MDA 2
1. Methylenedioxymethamphetamine 2. Methylenedioxyamphetamine
ng/mL = nanogram per millilitre BrAC = Breath Alcohol Content is the amount of alcohol in a volume of breath and is expressed in terms of grams of alcohol per 201 litres or exhaled air as indicated by a breath test ng/mg = nanogram per milligram Due to precision of lab testing, the threshold of testing is lower for some substances compared to the original testing levels. *Canadian Model for Providing a Safe Workplace (Canadian Model) (using urine drug and breath alcohol concentration limits as established by the U.S. Department of Transportation , and oral fluid drug concentration limits as established by COAA and
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