Oral test only pick up a couple days worth of residue. The simple answer is, don't do drugs. If you are going to do the anyway, stop for at least a week if you want a clean test. The typical swab test traces 24-48 hours, but a week will be on the safe side.
I'm guessing you are referring to marijuana? In that case, it depends on how often you use. I passed an oral drug test 2 days after smoking. I did it by taking 2-3 500mg niacin pills each night and drinking a lot of water. In addition, if you exercise vigorously, take warm showers/baths, and sweat a lot then you have a significantly higher chance of passing your drug test.
by time (saliva drug tests detect usage for short period of time)
Most drugs don't stay in your saliva very long, so if you can stay away from the drug for at least 3-4 days before the test, you should be fine
The simplest way is not to take drugs.Apart from this there is no 'quick and easy' method to pass a drug screening test.
Nothing, you just quit using for about 3 days before test
You don't. If the test is properly administered, there is no way to scam it.
I've read that eating a meal high in fat content will facilitate passing the oral swab test
Nope. Go get a drink from the pot shop
you can pass an oral drug test with mouthwash
Will you pass a swab drug test if you passed a urine drug test on the same day?
Probably not. THC metabolites are stored for a long time. We wouldn't chance it if we were you.
The only way to pass a drug test is to stop using drugs. Simple as that.
If i drink ice tea i can pass a drug test in two days. I can also pass a drug test now.
If you have been doing drugs, you won't pass a drug test.
The best way to pass a drug test is not to take the drug they are testing for.