Understanding Results

PharmChek® is a collection device designed to retain evidence of drug use over the course of wear-time. Detection Periods in sweat differ from those in urine.
Results cannot be used to:
- Determine the dose of drugs taken
- Determine the exact time of usage
- Determine if multiple small doses or one large dose of drug was ingested
Testing Methods & Cutoff levels
Drug or Drug Class Analyte
Opiates: EIA 10ng/mL
Fentanyl: 1 ng/mL
Norfentanyl: 1 ng/mL
6-MAM: 10 ng/mL
Morphine: 10 ng/mL
Codeine: 10 ng/mL
Hydrocodone: 10 ng/mL
Hydromorphone: 10 ng/mL
Oxycodone: 10 ng/mL
Oxymorphone: 10 ng/mL
Cocaine: EIA 10 ng/mL
Benzoylecgonine: 10 ng/mL
Amphetamines: EIA 10 ng/mL
Amphetamine: 10 ng/mL
Methamphetamine: 10 ng/mL
Marijuana: EIA 1.5 ng/mL
THC: 0.5 ng/mL
Phencyclidine: EIA 7.5 ng/mL
Phencyclidine: 7.5 ng/mL