How long does urine stay good for urine tests?
For drug screens only:Some analytes (cannabinoids for instance) start degrading the moment the specimen is voided. Some degrade in the presence of light (LSD).It’s customary to send specimens by UPS or other courier system which may take several days. In the summer, specimen temperatures may exceed 110 degrees F. Consequently, it’s customary to treat specimens as freshly collected despite issues which may emerge during transport (some become too alkaline because of urea breakdown into ammonia and carbon dioxide; some develop substances which assay as oxidants). Sometimes the lab can be directed to assay anyway; sometimes the lab rejects the specimen as unsuitable. It depends on the lab’s standard operating procedure and agency testing procedures.Recognizing the potential for analytes to degrade over time, it’s customary to ignore cutoffs when repeat-assaying a specimen (for instance at a second lab).NOTE: APPLIES TO DRUG TEST SPECIMENS ONLY.
How long do you have to be clean from smoking methamphetamine to pass a drug test for probation?
You can smoke meth up until the day of the UA. All you have to do is put three table spoons of baking soda in sixteen ounces of water and drink it three and a half hours before your UA. After about an hour and a half of drinking the mixture you will get explosive diarrhea for about forty five minutes to an hour. you have four hours from the time you take it till its expired. Trust me I was on intensive corrections for the last two and a half years and did meth everyday ands a lot of it, I failed one UA that's because I took the mixture four and a half hours prior to the UA. three tablespoons to sixteen ounces of water slam it down three and a half hours before UA I guarantee you to pass. Only works for meth. The diarrhea is violent but not uncomfortable. Don’t exceed three table spoons you could get real sick and overdose. And oh yea if you throw up you got to drink it again. I love my nuts but I will putt them up against if this works or not.p.s. I see people are saying 72 hours to pass a ua for meth. B.S I have personally failed a u.a. 21 days clean. No joke I had an honest 21 days clean and failed thats when I found a real solution like the baking soda.
How Long Does Alcohol Stay in Your Urine????The ETG test for alcohol is expensive?
They will do an EtG test and it is capable of detecting if you drank alcohol up to 80 hours from your last alcoholic drink. But that 80 hours is the maximum time if they are using a urine sample. Much depends on genetics, how much you drank and luck. These tests aren't that reliable; and they usually set the level high to help prevent a false reading. (There was one study done where nurses were testing positive even though they didn't drink alcohol in the past 80 hours. It was later determined the alcohol gels they were using to clean their hands caused the false/positives.) Chances are; if you are on probation and underage or if part of your probation requirements state no alcohol, then they likely will perform this test on your urine sample in addition to the drug test. So it's probably best to stay away from alcohol until probation has ended. Below is a cut and paste answer I wrote that explains it further. There is a test for alcohol that some employers include as an additional part of the drug test. Below explains it further. An EtG test detects metabolites your body produces when it metabolizes alcohol. To get more specific, the two metabolites that the test is looking for is: Ethyl Glucuronide and Ethyl Sulfate Most EtG tests are at the 100 ng/ml level. Above that level you fail; below it you pass. EtG tests can be done through urine, saliva or hair tests. (Below are maximum detection times) It can be detected in urine up to 80 hours from last alcoholic drink; Hair up to 90 days. It can be done along with a standard drug test. They just add that test to the standard 5 panel drug test for an additional fee. Probation departments, schools, and some employers are using this test now; especially with underage employees. http://alcoholism.about.com/od/work/a/et...
Urine lab test for cocaine?
alkacue - URINE TESTING FOR COCAINE: Metabolite Detectable Longer Than Expected In Some Cases "How long will it take for crack (or cocaine) to clear out of the urine?" is not a straightforward question. You are correct that when urine is being screened for the presence of cocaine, it is actually benzoylecgonine, a metabolite of cocaine, that is being measured. Second, as to how long it will take for this metabolite to be eliminated from the urine, in some cases the answer may be longer than traditionally thought. Several studies suggest that benzoylecgonine can be detected in the urine of chronic, highdose abusers for longer periods of time than originally expected. Urine screens currently required by many employers use the minimum cutoff levels set by the National Institute of Drug Abuse (NIDA) to establish a positive drug test. A urine level of 300 nanograms per milliliter (or 300 micrograms per liter) of benzoylecgonine is considered a positive result for cocaine use. However, these levels can vary in the same individual depending on when the test is done. For example, first void of the day samples will yield the highest concentrations of drug metabolites. Testing urine at other times of the day will yield differing results, just as the concentration of urine itself changes throughout the day. Due to these variations in urine concentration, positive test results can occur following a negative test result, although no additional cocaine was used. Many people try to avoid a positive test result by "watering up," or drinking large amounts of fluids to dilute their urine. Ideally, a 24-hour sample should be taken, but this is impossible in most work settings. Performing random urine sampling is about the only way to assure a representative specimen. The widely accepted time period for benzoylecgonine to be cleared from the urine is three to five days. One study suggests that high dose users (i.e., 0.5 gram or greater for each episode of use) can test positive after eight days. Another study claims that benzoylecgonine can be detected in heavy cocaine users for 10-14 days. The longest time over which positive urine levels of benzoylecgonine were detected was 10-22 days. This was after chronic use of extremely high doses of 112 grams per week. Sorry I can not be more specific.
How long can urine specimens sit in room temperature when collected?
Storing urine at room temperature starts a process where urea is converted to ammonia and sugars are converted to ethanol. Other than this which includes the expulsion of gases, there is not much other change in the liquid. This change has been used for various purposes in the past including medications, fertilizer, cleaning, gunpowder, textiles, and tanning. However, if you are concerned with the concentration of excreted drugs or the physical properties of the urine, then these will start changing almost immediately at room temperature. This is why laboratories performing a urinalysis do the test within a day and then the urine is disposed. For those doing drug testing, samples are placed in refrigerated storage within a couple of hours of receipt at the laboratory and kept there until testing is complete. All negatives are disposed and positives are placed in frozen (-60 degrees C) storage. Even at these low temperatures, the concentration of drugs and metabolites decrease slowly. This is the reason that if a sample is ever sent to be repeated by another facility, the cut off is then the level of detection instead of the normal cut off. The second facility only proves the presence or absence of the drug in question, not that it has maintained the same concentration over time.However, you can store it for extended periods of time but it will not be the same as that when leaving the body.
How long does urine last for drug testing?
I depends on the drug but in general a long time if the sample has been stored correctly. However an important part of the drug testing process is chain of custody. The integrity of the sample must be ensured. This involves the whole process from sample collection to storage and analysis. Each time the sample is handled whether for analysis, transport or storage the process must be logged and the integrity of the sample maintained using tamper proof containers and secure fridges/freezers with restricted access.The urine table in this document has some details.http://apps.who.int/iris/bitstre...Mostly stability seems to be over a year if frozen.
How long does it take for Mary Jane to pass thru your system?
If you only smoke a couple times a month there is a high (no pun intended) chance that you could very well pass a test now. There are variables, but in general it doesn't really take that long for your system to be clean. It really depends on how much you smoke, your body fat content and your metabolism rate. But I have seen a large amount of people in your same situation pass. And urine tests are fairly inaccurate and easy to pass. sharon s: Let's get real, here. To assume all people who smoke marijuana are bad or are criminals is just complete ignorance. Get over yourself.