Doctor insights on:
How Long Will Weed Stay In Your Urine
Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more
2-4 days: Here's a website w/ information on various substances and different tests. Beyond passing or failing a test though, I hope you also have an interest in helping yourself in broader wholistic ways. If it is about you, do seek info on ways to become a free agent. Best wishes! http://www.thegooddrugsguide.com/heroin/drugtests.htm ...Read moreSee 1 more doctor answer
3-4 days: A single cigarette will give a positive urine cotinine for 1-2 days, regular smokers generally 3-4 and rarely 5 days, and blood tests can detect it for about the same time. Oral swabs may detect if for a bit longer, up to 7-10 days, and it can be found in hair drug testing for months, depending on the length of hair chosen. ...Read more
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