Drug Detection Times

Drug & Nicotine Testing Kits Cutoff Levels & Detection Times

A detection period for drug testing kits is the amount of time after consuming a drug that a particular testing method could still show a positive result. A cutoff level is the defined concentration of a substance in a specimen. If the level is at or above the drug test result is called positive and if the level is below the drug test result is called negative. A confirmation cutoff level is the level at which a drug is confirmed to have shown in the sample at or above the listed level and has given a positive result.

Urine drug testing cut-off levels are expressed in nanograms per milliliter (ng/mL) or as a weight of drug per unit volume of urine. Hair drug testing cut-off levels are expressed in picograms per milligram (pg/mg) or as a weight of drug per unit weight of hair.

Hair Drug Testing
Screen Cut-Off GC / MS Cut-Off L.O.D. Level
Amphetamines Amphetamine, Methamphetamine & Ecstasy 300 – 500pg/mg* 200- 500pg/mg* 100 pg/mg
Cocaine Cocaine & Benzoylecgonine 300 – 500pg/mg* Cocaine: 200 – 500pg/mg*
Benzoylecgonine:50 pg/mg
100 pg/mg
Phencyclidine PCP 300pg/mg 100 – 300pg/mg* 100 pg/mg
Opiates Codeine, Morphine & 6-MAM(Heroin metabolite) 200 – 500pg/mg* 200 – 300 pg/mg* 100 pg/mg
Marijuana THC, Carboxy-THC 0.1 – 1 pg/mg* THC: 0.3 – 50 pg/mg*
Carboxy-THC: 1 pg/mg
0.1 pg/mg
Barbiturates 500 pg/mg 200 pg/mg -
Benzodiazepines 500 pg/mg 200 pg/mg -
Propoxyphene 500 pg/mg Propoxyphene: 200 pg/mg
Norpropoxyphene: 200 pg/mg
-
Methadone 500 pg/mg Methadone: 200 pg/mg
EDDP: 200 pg/mg
-
Oxycodone Oxycotin, Percodan/Percocet 300 pg/mg 300 pg/mg -
Hydrocodone Vicodin, Lortab/Lorcet 300 pg/mg 300 pg/mg -
Hydromorphone Dilaudid 300 pg/mg 300 pg/mg -
Urine Drug Testing
Cut-Off Level EIA Screen Cutoff Level GC/MS Confirmation Cutoff Level Approximate Detection Time in Urine
Amphetamine (AMP) 1000 ng/mL 1000 ng/mL 500 ng/mL 2-4 Days
Amphetamine (AMP300) 300 ng/mL 1000 ng/mL 500 ng/mL 2-4 Days
Methamphetamine (MET) 1000 ng/mL 1000 ng/mL 500 ng/mL 3-5 Days
Methamphetamine (MET500) 500 ng/mL 1000 ng/mL 500 ng/mL 3-5 Days
Cocaine (COC) 300 ng/mL 300 ng/mL 150 ng/mL 2-4 Days
Cocaine (COC150) 150 ng/mL 300 ng/mL 150 ng/mL 2-4 Days
THC (THC) 50 ng/mL 50 ng/mL 15 ng/mL 15-30 Days
Opiates (OPI) 2000 ng/mL 2000 ng/mL 2000 ng/mL 2-4 Days
Opiates (MOR) 300 ng/mL 2000 ng/mL 2000 ng/mL 2-4 Days
Phencyclidine (PCP) 25 ng/mL 25 ng/mL 25 ng/mL 7-14 Days
Barbiturates (BAR) 300 ng/mL 300 ng/mL 150 ng/mL 4-7 Days
Benzodiazepines (BZO) 300 ng/mL 300 ng/mL 150 ng/mL 3-7 Days
Methadone (MTD) 300 ng/mL 300 ng/mL 150 ng/mL 3-5 Days
Propxyphene (PPX) 300 ng/mL 300 ng/mL 150 ng/mL 1-2 Days
Ecstasy (MDMA) 500 ng/mL - - 1-3 Days
Tricyclic Antidepressants (TCA) 1000 ng/mL - - 7-10 Days
Hydrocodone 300 ng/mL - 300 ng/mL 2-4 Days
Hydromorphone 300 ng/mL - 300 ng/mL 2-4 Days
Oxycodone (OXY) 100 ng/mL - 100 ng/mL 2-4 Days
Oxymorphone 100 ng/mL - 100 ng/mL 2-4 Days
Saliva Drug Testing
Cut-Off Level EIA Screen Cutoff Level GC/MS Confirmation Cutoff Level Approximate Detection Time in Saliva
Amphetamine (AMP) 1000 ng/mL 1000 ng/mL 500 ng/mL 1-3 Days
Methamphetamine (MET) 1000 ng/mL 1000 ng/mL 500 ng/mL 1-3 Days
Cocaine (COC) 300 ng/mL 300 ng/mL 150 ng/mL 1-3 Days
THC (THC) 50 ng/mL 50 ng/mL 15 ng/mL 6 -12 Hours
Opiates (OPI) 2000 ng/mL 2000 ng/mL 2000 ng/mL 1-3 Days
Phencyclidine (PCP) 25 ng/mL 25 ng/mL 25 ng/mL 1-3 Days
Nail Drug Testing
Screen Cut-Off GC/MS Cutoff
Marijuana 1 pg/mg THC: 50 pg/mg
Carboxy-THC: 1 pg/mg
Amphetamine 500 pg/mg 200 pg/mg
Methamphetamine 500 pg/mg 200 pg/mg
Cocaine 500 pg/mg Cocaine: 200 pg/mg
Benzoylecgonine: 50 pg/mg
Opiates (Codeine, Morphine) 200 pg/mg 200 pg/mg

Nicotine Testing

Detection time : 4 Hours – 4 Days

* The above charts give approximate detection periods for each substance by test type. The ranges depend on amount and frequency of use, metabolic rate, body mass, age, overall health, drug tolerance, and urine pH. Please call us for detailed information.