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They only show what is in your system currently, if you have done some thing that a toxin will stay in your body for any length of time and the times over lap then it will show in your test.
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∙ 12y ago
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How far back can a urine drug test show usage?
It depends on the drug.
How far back can alcohol be detected in a swab test?
Alcohol for a swab test go back
You have taken vicodin 3 times 4 months ago will it show up on your hair drug test?
hair drug tests will show all drugs that you have taken as far back as 7 years. they test the hair folical.
How far back can a drug test go for weed i have to take a drug test 10 months from now and i herd that some test can go back as far as a few years is tht true?
NO... this is not true! The furthest back a drug test can go is about 6 moths if they use a sample of your hair. Urine drug test can only go back as far as a month.
Does it show smoking cigarettes on a drug test if so how far back?
Yes, cigarettes can show in a blood test, and it is commonly tested for in order to receive health insurance discounts. Tests for other substances, such as smoking marijuana, are able to show some of the toxins found in tobacco and will indicate tobacco use. Depending on the type of test the results can go back many months.
How far back does a saliva test go?
7 years
How far back can you test for drug use?
10years
How far back do a level 2 background go back?
not how far, you can make it darker to show the difference.
How far back does the mouth swab test detect oxycodone?
It takes 3 to 5 days max to not show up..anythin after 72 hours your good to go.
How far does a salvia test go back?
There is not an specific test for salvia divinorum yet, so there is no probability to get caught on a test.
How far back does a placenta drug test go?
9 months
How far back can a urine test detect cocane?
72 hours
