How far back do drug tests find drugs?

Question

if i have a drug test in febuary..how many months before do i have to stop using

Answer 1

I wouldn't use at all. Drug tests results vary on the type of drug being used, and the type of test being administered. Fat soluble drugs such as pot will stay in the body, and can be detected in a UA test for several weeks. Water soluble drugs, such as methamphetamine, will be able to be detected in a UA test for approximately one week. However hairstat testing can very accurately tell what drugs were used and in what quantity, for as far back as the roots of your hair will show. Hair grows about 1/2" to 1" per month. Depending on how long your hair is, they can tell what drugs have been used in that time.

Answer 2

It depends on what test and what drugs. Pot stays with you 30+ days in a urine screen, I think meth is also 30 days, vicodin and other narcotics 5-7 days and if I remember right alcohol is 1-2 days. The times can be a little less (day or 2 maybe) if you consume a lot of fluid regularly.

If it is a hair screen you are screwed!! Hair goes back 3 months or more with reliable results. Despite what you will read on the net there is NO WAY to fool a hair screen! Shampoos and creams do NOT work, don't waste your money.

You should stop NOW! Not only for the drug screen but for your health!

Answer 3

Depends on what drugs......
Marijuana is 30 days if you are a daily user. About 2-3 weeks for occasional use, but this is not a precise time. It also depends on your general health, because THC gets stored in fat cells.
Almost all other drugs, including any speed like cocaine or meth, and also any pills or prescriptions, is 72 hours. This time can be cut down to about 48 hours for speed by drinking large amounts of water and coffee to increase urination, and therefore the elimination of the toxin from the urine.
It also depends on the type of drug test. Urine tests are easier to pass sooner because you can dilute the urine. Blood tests can't be fooled. Pot is a full 30 days and speed is 3.
Acid can only be detected in spinal fluid after the first 3 days.
Many drugs can be detected by a hair test-and that type of testin remains effective for as long as you have that hair. If you smoked pot 6 months ago, and you still have the same hair on your head (as in it hasn't grown out and been trimmed), it can be detected.

Answer 4

Labs will test hair test up to 3 months history.Every half inch of the hair goes for a month.Hair longer than 2 inches usually getting rejected and reason is labs don't do tests longer than 3 months history.

Answer 5

Depends on the type of drug test. A hair test could trace back for months & I think urine traces about a month or so. Your best bet is to lay off all drugs if you're interviewing or something.

Answer 6

Depends on what you are using for example, cocaine will be out of your system within 2 or 3 days, but something like marajuana (which really should be legal) takes 2 to 4 weeks to leave your system completely.

I feel so sorry for Americans and all their drug testing. Talk about the land of the free, hehe.

Answer 7

About a month for pot, about 24 hours for most other drugs. Coc is out of your system fast and so is X. If you smoke pot every day I might give it a little more than a month just to be safe, but if you only smoke once and a while than 2-3 weeks is fine.

Answer 8

Depends on the drugs.

Answer 9

well it depends on what u did if you smoked weed it will last for a lil more than two weeeks but if they do a hair test the drugs will be in your hair for one year...

Answer 10

every drug is different, it also depends on your body type. for a general list see: http://www.ohsinc.com/how_long_do_drugs_stay_in_your_system.htm