Help! Will a hair test detect if you did a drug once 5 months ago?
969725
It depends on how short your hair is.  If it's more then 2.5 inches then yes.
483519
Depends on if you use it regularly or not. If you are smoking daily, it can stay up to a month in your system, and would be detected by a urine test for that length of time.
1060812
the answer is no,that test ( hair sample ) can tell them what cough syrup your mother gave you when you where 2.and i mean the date and time,it is a very accurate test and can not be fooled...( relitive in the C.I.A trust me on this...)
429480
Toxicology screens (drug testing) done on blood and urine specimens can reveal the presence of many chemicals and drugs in the body. The sensitivity depends upon the sensitivity of the test, the substance itself, when the substance was taken, and the testing laboratory. Blood tests are more likely to detect the presence of an abused substance than urine tests, however, urine drug screens are more frequently done. Opiates and narcotics are usually present in the urine 12 to 36 hours after the last use, depending on the amount used and the frequency. Central Nervous System stimulants such as cocaine can be detected in urine anywhere between 1 to 12 days, again depending in frequency of use. Central Nervous System depressants such as Valium and Xanax are detected up to 7 days after the last day of use, mostly depending on the substance used and how quickly it is eliminated by the body (half-life). Most hallucinogens are also detectable in the urine up to 7 days after the last use. However, cannabis can be detected up to 28 days in regular users. This is only a really rough guide and each person eliminates (gets rid of a substance) at different rates and many factors can influence a test result including how regularly the drug was used. It is impossible to predict whether or not a drug may be present in your bodily fluid or whether the test used will be sensitive enough to detect it.
286817
it can sty in your system for up to 30 days but it can also be detected in a strand of your hair for up to 6 months
588702
Yes, it will stay in your system for at least a month.  It will also show in your hair follicles for months.  There is really nothing you can do about it unless you have one of the cheats available, like the bag with real pee.  Even if you didn't smoke it, if you are in a situation where pot is being smoked, you can inhale it and it will show up in a drug test...sorry dude.
254502
That will stay in your system for a year.  Taking a hair follicle test will prove it.
185075
3 months in your system, probably longer in your hair.\n\nBest to admit to health professional conducting test that you are casual smoker, or have stopped.\n\nGood luck.
897490
Each of these tests have limitations.  Much would depend upon what drug you suspected, how the body modifies or metabolizes the drug and how it is usually eliminated.\n\nOften drugs are eliminated so rapidly that you will never be able to detect anything.  On the other-hand some tests are so sensitive that they will yield false positives due to "non-drug" exposure (like alcohol in mouth wash or nicotine from second hand exposure).\n\nThe skill and experience of the person doing the testing is as  important as the method used or the specimen taken.  Often the numerical results require interpretation before non-professionals can understand exactly what the numbers mean.\n\nBecause urine often contains drug metabolites and is readily available, it is probably the specimen of choice for any initial screen unless other information is provided.\n\nThe GC-MassSpec testing on hair, based upon the drug getting into the hair by way of the blood supply to the follicle is an excellent way to confirm past drug use if the exact drug is known and a history of drug abuse is on record.  It is a less than accurate method of drug screening.  Sites promoting this method are almost always selling services (which are expensive) and seldom tell about false positives due to other environmental factors.
647360
it depends on the type of test; if it is blood or urine, depending on your metabolism, between 2-5 days, faster if your metabolism is high (ie if you are thin it is probably faster, and if you are bigger vice versa) It also depends on your usage, if you are habitual, it could take somewhat longer than if you are an occasional or one time user....if is is a hair follicle test, it depends on your ethnicity, but it could go back up to 18 months depending on your hair color and length (shorter for blondes than brunettes) this info should be pretty on the mark... thc from marijuana stays in longer because unlike coke, it is stored in your fat cells
119629
This all depends.  How big are you, how much do you smoke?  THC is stored in your fat cells.  The bigger you are, the longer it sticks around. The more you smoke, the longer it sticks with you.  If you are trying to pass a drug test, best thing you can do is buy something to clean you out from your local head shop.  Otherwise, unless you smoke very little amounts & can wait about a month.  Then you could probably pass a urine/blood test.  It takes 6 months or more for it to be undetectable in your hair.
180164
Most of you are correct. Uless they are doing a hair snip test. this will reveal up to 90 days of history. If they do a hair FOLICLE test this may reveal up to a year. And if you havent yet had enough there is a fingernail cuticle test that can show up to 5 years.
995646
Off hand opinions:  It depends upon the type of test.\nAnd also your body fat percentage and metabolism, I think...\nI have seen medium build men pass a urine test when they 'smoked' last week.  I have heard of people drinking pickle juice or orange juice and 'flushing'  their systems out.  I would say there are no guarantees.\n\nan article said about detection periods:1-3 days for single use, and up to 84 days for habitual use.-for a urine test. 90 days for hair test, and 24 hours (single use) and 2 days (habitual use)  for a blood test.
372939
I hope they do a hair sample test. Then you can't hide it!
741275
if it did show up, it would only be trace amounts.  from this, all they actually can prove is that you have been around it, not smoking it.
639633
No, it cannot, but many companies take hair samples.  I know my company does.  I think they may be able to test hair that far back if your hair is long enough.
883563
You can't.  It will test positive in your urine for over a month if you have been smoking for a long time.  It will test positive in a hair follicle for 3-6 months, depending on how long/how much you've used.\n\nOvernight?  Absolutely no way.  There's nothing you can drink, eat or do to get it out overnight...or two nights...or three nights...or