What are detection times for drug testing?

FAQ: What are detection times for drug testing?

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There are varying detection times involved in drug testing depending on many factors plus also the specimen type used for testing.  As show on the image above hair specimens have the longest detection time followed by urine, oral fluid and finally blood.  Other factors that determine drug use detection times include:

Common Questions we Receive on Drug Test Detection Times

The answers to these questions vary depending on many factors.  Most notably these include the specimen type used for the drug test – blood, oral fluid, urine, or hair.  The different drugs that we test for also have varying detection times.  The chart below lists the various drugs and the approximate detection times for those drugs.  It is important to note these values are not exact, they are approximate because of many different contributing factors.

Drug Test Detection Times

Drug Blood Specimen Oral Fluid Specimen Urine Specimen Hair Specimen
Amphetamine Within minutes to hours 5 – 48 hours 1 to 3 days Up to 90 days
Methamphetamine Within minutes to hours 5 – 48 hours 1 to 3 days Up to 90 days
Cocaine Within minutes to hours 5 – 48 hours 2 to 4 days Up to 90 days
Phencyclidine (PCP) Within minutes to hours 5 – 48 hours 14 days up to 30 days in chronic user Up to 90 days
Marijuana Within minutes to hours 5 – 48 hours 14 days up to 30 days in chronic user Up to 90 days
Opiates Within minutes to hours 5 – 48 hours 2 – 3 Days Up to 90 days
Barbiturates Within minutes to hours 5 – 48 hours Short acting: 2 days, Long acting: 1 to 3 weeks Up to 90 days
Benzodiazepines Within minutes to hours 5 – 48 hours Therapeutic dose: 3 days, Extended dosage, or chronic use (1 or more years): 4 to 6 weeks Up to 90 days
Propoxyphene Within minutes to hours 5 – 48 hours 6 hours to 2 days Up to 90 days
Methadone Within minutes to hours 5 – 48 hours 3 Days Up to 90 days

 

Related pages on Drug Test Detection Times:

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