Cannabis Testing in Humans

CannabisNow Magazine Infographic by Ray Noland CANNABIS TESTING IN HUMANS - DETECTED NOT AFFECTED REQUIRE hair sample the diameter of a pencil by briof periods of abstinence. from 12-24 hrs and 1.5in. long. Cannot be done with single strand. DETECTED $. $4 from 2-7 days TESTS POSITIVE twice as often as SHAMPOOS and "follicle a urine test. cleansing" products do not reliably remove drug metabolites from hair. MOST EXPENSIVE MOST 2X CAN DETECT when use occurred and if it has been discontinued. HAIR/FOLLICLE tests as of 2011 are able to detect ACCURATE use for months (sometimes more than a year) after use. LEAST BLOOD COMMON : most intrusive HAIR8 DETECTS use over a longer period. (does not usually detect use within unintrusive past week.) MORE COMMON DETECTS use primarily EASY within the past week (onger with regular use). DETECTS use within past few duys. AFFECTED by abstaining from use for a period of time before the test. CAN DETECT more recent use than other methods. NO national standards. This could make results less-reliable and/or LEAST TEMPERATURE tested EXPENSIVE to insure integrity. acceptable for legal cases. SALIVA: 5 URINE PDETECTED from 1-7+ days MORE RELIABLE detecting Methamphetamine and Opiates, loss roliable for THC or Cannabinoids. DETECTED unintrusive intrusive from 7-100 days KEY There are a variety of testing methods used by private groups, corporations, the government, etc. which are aimed at detecting the presence of cannabinoids in an individual's body. The following is a comprehensive list APPROX $50 SINGLE USE of the various methods used. HABITUAL USE LAB REQURED Moreover, cannabis testing also leaves room for the possibility of false positives. According to the University of Ilinois - Chicago, many pain killers (prescription and over-the-counter) may lead to these types of false results. Some of the drugs that may result in a false-positive test include: Dronabinol, Efavirenz, Ibuprofen, Ketoprofen, Naproxen, Piroxicam, Promethazine, proton pump inhibitors such as Pantoprazole, Tolmetin, and Sulindac to name a few. Sources: Erowid, California NORML, UIC %24 %24 %24 %24