Drug Test - What shows and what time frame?

I know this may be impossible to answer totally, but if say at court, the bios were asked to do a urine drug test, what most likely are they testing for and how long do certain drugs stay in your system, that is to say, can it be deduced from the urine test how recently a person used drugs. Thanks...

Cocaine is out of the system in 3 days. That's why our bio mom passes the urine test but not the hair test.

Any illcit substance not naturally mimicking the body's own hormones should come up (all illegal drugs that you're thinking of) in standard urinalysis. The time each drug stays in the body is different, even different depending on amount consumed and impurities in the substance.

but I've heard there's a drink that will eliminate marijuana faster.

Substance/ Urine/ Hair /Blood / Oral Fluid Alcohol/ 624 hours[4] Note: Alcohol tests may measure ethyl glucuronide, which can stay in urine for up to 80 hours up to 2 days 12֖24 hours Amphetamines /(except methamphetamine) 1 to 3 days/[5] up to 90 days 12 hours Methamphetamine /3 to 5 days/[6] up to 90 days/ 13 days[6] MDMA (Ecstasy)/ 3 ֖ 4 days/ up to 90 days/ 3 4 days Barbiturates (except phenobarbital) /1 day /up to 90 days /1 to 2 days Phenobarbital /2 to 3 weeks/ up to 90 days/ 4 to 7 days Benzodiazepines Therapeutic use:/ up to 7 days. Chronic use (over one year):/ 4 to 6 weeks/ up to 90 days/ 6 to 48 hours Cannabis Infrequent users:/ 3-4 Days; Heavy users: 10 days; Chronic users and/or users with high body fat: 30 days./ up to 90 days/ 2֖3 days in blood/ up to 2 weeks in blood of heavy users[8] However, it depends on whether actual THC or THC metabolites are being tested for, the latter having a much longer detection time than the former. THC (found in marijuana) may only be detectable in saliva/oral fluid for 224 hours in most cases. Cocaine /2 to 5 days (with exceptions for heavy users who can test positive up to 7֖10 days, and individuals with certain kidney disorders) up to 90 days/ 2 to 10 days Codeine/ 2 to 3 days Cotinine (a breakdown product of nicotine)/ 2 to 4 days /up to 90 days /2 to 4 days Morphine /2 to 4 days /up to 90 days/ 1 3 days Tricyclic antidepressants (TCA's) /7 to 10 days / Undetectable[11] Detectable but dose relationship not established[12] LSD/ 2֖24 hours /up to 4 days / 2 to 4 days Methadone /7 to 10 days /up to 90 days /24 hours Steroids /3 to 30 days PCP/ 3 to 7 days for single use; up to 30 days in chronic users / up to 90 days/ 1 to 3 days Chart is at [url=http://en.wikipedia.org/wiki/Drug_test]Drug test - Wikipedia, the free encyclopedia[/url]

It depends on what they want to test for. The most common test, however, is called an 8-panel and tests for 8 different substances (obviously). There is also a 10-panel and a 12-panel. An 8-panel tests for the following: Cocaine (including crack) Amphetamines Opiates (like heroin, Vicodin, Oxycontin, etc.) THC (marijuana and hash) Methamphetamine Barbiturates (like Phenobarbital) Benzodiazepines (like Xanax, Valium, etc.) PCP The other panels test for these as well as some synthetic drugs like Ecstasy, methadone, propoxyphene, oxycodone, spice, Suboxone, Ketamine (special-K), etc. You can also do more extensive tests to look for certain prescription medication like Ambien, etc. The 8-panel is the most common because it tests for most illicit drugs which are the most commonly abused drugs. The tests can be done in a lab or "in-house" with a dip stick that will give you results in just a few minutes. I would guess that the court would use an 8 or 10 panel. How long the drugs stay in someone's system depends on the drug, the person and how much and how often the person has used. Most drugs, like opiates, cocaine, meth, etc., stay in the system for about 4-7 days but can stay longer for some people, especially if someone is a regular heavy user. Benzos can stay in the system anywhere from 3 to 28 days. The same is true for barbiturates. THC will stay from about 7 days to several weeks. I'm not sure about PCP but I would guess it's about a week too. It's not a very common drug anymore. If someone knew that they had to pass a drug test they would be wise to not use anything for at least a week and no pot for several weeks. Anything else is pushing it. There are a lot of myths that there are stuff you can eat or drink to get drugs to leave the blood stream earlier and there are tons of stuff you can buy on the internet for the purpose. None of it works, though. At best it can dilute the urine which may prevent a drug from showing up but if tested in a lab it will show that it's diluted and the sample is considered unusable. Some places will automatically consider that to be a positive test. Even if you don't test the sample in a lab you can often see by looking at the urine that it's diluted because it will look almost like water. There are of course other ways to beat a urine test if one is prepared ahead of time. They now have saliva tests that are supposed to be impossible to fake. They are only a few bucks more than the dip sticks so why they don't use those is beyond me. It would take the risk of faking out of the equation.

Meth is only 3 days or so, and the geniuses who set up the out patient program in our area test them once a week, on the same day every week. The entire group was going out after class and hanging together for a couple of days, getting high, then stopping so theyd be clean again for the next test.

Thanks everyone for the replies, very helpful.

Hi, I was already interested in this issue and I can tell you, they are displayed in about 30 days, but much depends on the body. Here is the article and everything is described in detail.

(Source) Drug detection timesPlease use these figures as a guide only: Alcohol: 3-5 days in urine, 10-12 hours in blood Amphetamines: 1-3 days in urine and around 12 hours in blood Barbiturates: 2-4 days in urine and 1-2 days in blood Benzodiazepines: 3-6 weeks in urine and 2-3 days in blood Cannabis: 7-30 days in urine and up to 2 weeks in blood Cocaine: 3-4 days in urine and 1-2 days in blood Codeine: 1 day in urine and up to 12 hours in blood Heroin: 3-4 days in urine and up to 12 hours in blood LSD: 1-3 days in urine and up to 2-3 hours in blood MDMA (ecstasy): 3-4 days in urine and 1-2 days in blood Methamphetamine (crystal meth): 3-6 days in urine and 24 - 72 hours in blood Methadone: 3-4 days in urine and 24-36 hours in blood Morphine: 2-3 days in urine and 6-8 hours in blood

Hair follicle drug test is most difficult test to clear. If you really want to prepare for the test then you need to wash your hair regularly with aloe shampoo. Here is the link for reference: