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Medical Disposables Corp. :: Drugs Detection Periods
| Drugs Detection Periods |
Detection periods
The following chart gives approximate detection periods for each substance by test type.[1]
The ranges depend on amount and frequency of use, metabolic rate, body
mass, age, overall health, and urine pH. For ease of use, the detection
times of metabolites
have been incorporated into each parent drug. For example, heroin and
cocaine can only be detected for a few hours after use, but their
metabolites can be detected for several days in urine. In this type of
situation, we will report the (longer) detection times of the
metabolites.
- NOTE 1: Oral fluid or saliva testing results for the most part
mimic that of blood. The only exception is THC. Oral fluid will likely
detect THC from ingestion up to a maximum period of 18-24 hours
- NOTE 2: Urine can not detect current drug use. It takes
approximately 6–8 hours or more post-consumption for drug to be
metabolized and excreted in urine. Similarly, hair requires two weeks,
and sweat, seven days.
approximate values for detection periods
| Substance |
Urine |
Hair |
Blood |
| Alcohol |
3–5 days via Ethyl Gluconoride(EtG) metabolite or 10–12 hours via traditional method |
up to years |
12 hours |
| Amphetamines (except meth) |
1 to 2 days |
up to 90 days |
12 hours |
| Methamphetamine |
2 to 4 days |
up to 90 days |
24 hours |
| Barbiturates (except phenobarbital) |
2 to 3 days |
up to 90 days |
1 to 2 days |
| Phenobarbital |
7 to 14 days |
up to 90 days |
4 to 7 days |
| Benzodiazepines |
Therapeutic use: 3 days. Chronic use (over one year): 4 to 6 weeks |
up to 90 days |
6 to 48 hours |
| Cannabis |
- Single Use: 5 to 7 days
- Prolonged Use: 3 to 4 weeks
|
up to 120 days |
12 days |
| Cocaine |
2 to 4 days |
up to 90 days |
24 hours |
| Codeine |
2 days |
up to 90 days |
12 hours |
| Cotinine (a break-down product of nicotine) |
2 to 4 days |
up to 90 days |
2 to 4 days |
| Morphine |
2 days |
up to 90 days |
6 hours |
| Heroin |
2 days |
up to 90 days |
6 hours |
| LSD |
2 to 24 hours |
Up to 3 days |
0 to 3 hours |
| Methadone |
3 days |
Up to 30 days |
24 hours |
| PCP |
14 days; up to 30 days in chronic users |
up to 90 days |
24 hours |
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