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URINE DRUG TEST

A urine drug screen can detect a range of drugs. These include:

* alcohol

* amphetamines

* barbiturates

* benzodiazepines

* cocaine

* marijuana

* methamphetamine

* opioids

* phencyclidine (PCP)

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Many factors affect the length of time that a test can detect a certain drug in the body. These factors include:

* body mass

* hydration levels

* the acidity of the urine

* how long ago the person took the drug

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If a person uses a drug very frequently or heavily, a urine test will detect the drug for a longer period. For example, the detection times for marijuana can depend on how often a person uses it: Frequency of marijuana use.

 

Detection times after use:

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* Single use  3 days

* Moderate use, or 4 times per week  5–7 days

* Daily use  10–15 days

* Heavy use more than  30 days

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This group shows how long a urine test can detect certain drugs after a person has taken them:

drug detection time after use.

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Alcohol  7–12 hours

Short-acting barbiturates  24 hours

Amphetamines  48 hours

Heroin  48 hours

Morphine  48–72 hours

Cocaine metabolites  2–4 days

Methadone  3 days

Short-acting benzodiazepines  3 days

PCP  8 days

Long-acting barbiturates  3 weeks

Long-acting benzodiazepines  30 days

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