How Far Back Can a Mouth Swab Drug Test Go Back?

Answer

A mouth swab drug test can go back about forty eight to seventy two hours. This type of drug test is often done in doctor's offices. It is a reliable test.
Q&A Related to "How Far Back Can a Mouth Swab Drug Test Go Back..."
A drug test can detect drugs that you took 4 days ago. ChaCha!
http://www.chacha.com/question/how-far-back-will-a...
A mouth swab drug test can only go as far back as 24-48 hours, but are usually more accurate than other tests. report this answer. Updated on Wednesday, February 01 2012 at 09:55PM
http://www.kgbanswers.com/how-far-back-does-a-swab...
actually the swab test does not go as far back as the urine test. the oral swab test window for opiates is only 1-3 days. usually only 48 hours. i can vouch for this concidering i
http://wiki.answers.com/Q/How_far_back_does_the_mo...
3 months
http://answers.yahoo.com/question/index?qid=200802...
1 Additional Answer
Mouth swab drug tests are considered to be a reliable method of drug detection. It is said that most drugs disappear from saliva between 12 and 24 hours. They can however last up to 72 hours.
Explore this Topic
The max amount of time that a oral swab drug test can detect drugs is seventy-two hours. Some tests go back a month or so depending on the amount of drugs that ...
A drug test using saliva goes back about 12-24 hours. After this amount of time the drugs usually disappear. This type of test is usually only helpful where recent ...
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