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Oral Fluid Testing Services

Because oral fluid specimens require much lower screening levels than urine, Wake Toxicology performs the initial screening test by enzyme-linked immunosorbent assay (ELISA) microplate technology. ELISA is one of the current screening methods with adequate sensitivity to detect drugs of abuse in oral fluid specimens. Results are further confirmed by mass spectrometry. THC may only be detectable for 2–24 hours in most cases.

Oral Fluid Testing

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Results Reporting

Oral Fluid Tests

Amphetamines / Stimulants

Barbiturates

Benzodiazepines

BenzodiazepinesCutoffs
Alprazolam15 ng/ml
Clonazepam20 ng/ml
Diazepam25 ng/ml
Flurazepam25 ng/ml
Lorazepam25 ng/ml
Midazolam25 ng/ml
Triazolam25 ng/ml

Illicits

IllicitsCutoffs
6-MAM 12.5 ng/ml
Cocaine25 ng/ml
MDA50 ng/ml
MDMA (Ecstasy)50 ng/ml
Phencyclidine (PCP)5 ng/ml
Tetrahydrocannabinol (THC)7.5 ng/ml

Opiates

OpiatesCutoffs
Codeine25 ng/ml
Hydrocodone25 ng/ml
Morphine25 ng/ml
Oxycodone25 ng/ml

Opioids

OpioidsCutoffs
Buprenorphine5 ng/ml
Fentanyl1 ng/ml
Meperidine25 ng/ml
Methadone50 ng/ml
Propoxyphene50 ng/ml
Sufentanil2.5 ng/ml
Tapentadol25 ng/ml
Tramadol50 ng/ml

Sedative

SedativeCutoffs
Meprobamate100 ng/ml