Thc in urine chart - ... Cannabis sativa, Cannabis indica, or Cannabis ... Factors that affect redistribution of THC from adipose tissue and excretion into urine ... chart analysis.

 
 The presence of delta-8 and/or delta-9 carboxy tetrahydrocannabinol (THC-COOH) in urine is a strong indicator that the patient has used cannabis/marijuana. THC-COOH has a long half-life and can be detected in urine for more than 7 days after a single use. . Academic calendar uf

Drug Test Resource Portal. Drug Test Calculator. Welcome to the world’s only data-driven cannabis drug test passing probability calculator. This application has been developed with over a decade of research and user submitted drug test results. Use it to determine what your odds of passing are when taking a urine or blood serum test.Test for 5 levels of THC in urine. The 5 detection levels are…. 1st level – 15ng/ml, Very light smoking, or within the last 72hours. 2nd level – 50ng/ml, Occasional smoking, maybe every weekend. 3rd level – 150ng/ml, Occasional to habit smoking, every other day. 4th level – 300ng/ml, Regular smoking, probably daily smoking.As mentioned above, researchers are confident that 15 to 20 percent of a Delta-9 THC dose ends up eliminated via urine. Therefore, the more potent your weed is, the more metabolites will end up in ...Urine from marijuana users contains quantities of 9-carboxy-THC in both free and conjugated form, as well as other cannabinoids (THC and its metabolites) detectable by the test. When the manufacturer's instructions are followed, urine samples containing at least the stated detection level of 9-carboxy-THC will test positive at least 95% of the ...While there are at least 70 chemical compounds present in cannabis, Δ 9-tetrahydrocannabinol (THC) is the primary psychoactive component (Kintz, 2020; UNODC, 2019). Thus, legislation around cannabis intoxication is centered on THC concentrations within the body. ... Urine, blood, sweat, hair, oral fluid, and breath have all been …Delta-9 carboxy-tetrahydrocannabinol (delta-9-THC-COOH) and creatinine concentrations must be obtained for at least 2 urine specimens with a known time interval (1-7 days) between collections. Using these creatinine-normalized delta-9-THC-COOH concentrations, a ratio is calculated between the concentration of any urine specimen (U2) divided by …Random urine specimens contain varying amounts of creatinine depending on the concentration of the urine. This THC/creatinine ratio provides a means to eliminate the urine dilution problem when interpreting THC values. Therefore, in general, an increase of >50% in the THC/creatinine ratio above the previous sample is considered toCannabis potency plays a crucial role in determining the concentration of THC in urine. High-THC strains will result in higher THC levels in bodily fluids compared to strains with lower THC content. Additionally, the route of administration (e.g., smoking, vaping, or consuming edibles) affects how THC is absorbed and eliminated, influencing ...Instead, the majority of the psychoactive is removed from the body via stool. That’s right—after you inhale, most THC metabolites will make a slow exit through method number two. In fact, only an estimated 15 to 20 percent of THC metabolites are actually removed via urine. Drinking too much water before a test can even be dangerous.Common street names Detectable duration in urine aft er last dose Urine cutof points for reporting positive by screening assay*. Toxic blood level. Blood reference (therapeutic) range. Jet, Cat Valium. CLR201713_EditandCharts DUM_LM.indd 11. www.clr-online.com • MLO • CLR 2017-2018 11.While urine tests check for cannabinoid metabolites, blood tests look for the presence of THC, and they’re ideal for detecting recent drug use. According to an article by the Addiction Center, THC stays in the blood anywhere between 4 and 24 hours, while chronic users can test positive for up to a week. Hair TestingSome tests also test for the temperature of your urine to make sure it is not a substitute. Last but not least different tests check for different levels of THC-COOH in your urine. It can range from 15-50 ng (nanograms). The higher the level the easier it will be to pass a drug test. I have personally smoked 6 days before a test with a 20 ng ...Medically reviewed by MNT Medical Network — Produced by the MNT Video Team on October 11, 2023. View video transcript. Share this article. Uncategorized. Tetrahydrocannabinol (THC) is a chemical ... Among the major metabolites ( 9-THC,11-OH-THC, and THCCOOH), THCCOOH is the primary glucuronide conjugate in urine, while 11-OH-THC is the predominant form in feces (51, 69). Since 9 -THC is extremely soluble in lipids, it results in tubular re-absorption, leading to low renal excretion of unchanged drug. DrugConfirm Urine Drug Test Kit. CLIA-Waived, FDA Approved, CE Marked and Forensic Use Only options available. Can Screen up to 16 Drugs of Abuse. EtG/Alcohol, K2/Spice, Fent. Panels Available (forensic use only) Adulterants and Temperature Strip for SVT. Results in 5 Minutes. Up to 99% Accurate.Protein amount. What it means. 30 mg/g or less. Normal. 30–300 mg/g. Moderately increased levels and potential chronic kidney disease. 300 mg/g or more. Severely increased levels. A reading of ...Marijuana Metabolites, Urine. Test Resources. None found for this test Please visit our Clinical Education Center to stay informed on any future publications, ... 10 mL random urine collected in a plastic urine container, no preservative. Minimum Volume. 5 mL. Transport Container. Transport tube. Transport Temperature.Hi , cannabis can stay in your urine anytime from 5 - 95 days. In this table you can find general detection times for weed. Remember that these are not a guarantee and can vary by person. Marijuana Detection Time Chart. Urine Drug Test. 1 time only. 5-8 days. 2-4 times per month.Feb 23, 2006 ... Columbia, MO: The length of time cannabis metabolites may be detected, on average, on a standard urine screen is typically no longer than ...THC, for example, produces the metabolite 11-nor-delta9-carboxy THC-COOH. These metabolites, being fat-soluble as well, can stay in the system and be detectable in a marijuana drug test for weeks and even months. They can remain dormant in fat cells and become reactivated due to the person’s behavior (e.g., running, changing …The chart below outlines approximate duration times in human urine. For oral drug detection times see Saliva Drug Detection Window . When interpreting the duration for the presence of drugs of abuse in the body, you must take into consideration variables including the body's metabolism, the subject’s physical condition, overall body fluid ...The most common cutoff for most marijuana urine tests is 50 ng/mL, but cutoffs can be as low as 15ng/mL and as high as 100ng/mL—each of which result in widely different detection windows.Nurses chart urine color by reporting what they observe without making inferences, explains the Chronicle of Nursing. Further, it is important for a nurse to note changes in urine ... Positive cutoff: 15 ng/mL. For medical purposes only; not valid for forensic use. The drug analyte detected in this assay, 9-carboxy THC, is a metabolite of delta-9-tetrahydrocannabinol (THC). Detection of 9-carboxy THC suggests use of, or exposure to, a product containing THC. This test cannot distinguish between prescribed or non-prescribed ... Standard Drug Testing Cut-Off Levels from our SAMHSA Certified Labs. Updated On February 14, 2024 3:10 PM. Joe Reilly. Posted on June 18, 2021. This blog post shows several charts of drug testing cutoff levels so please scroll down to view all. These charts include Non-DOT testing with urine, hair and oral fluid as well as DOT regulated …Drug Testing Solutions At-A-Glance. Collection and Donor provides minimum 3 0 mL Testing Procedure urine (4 5 mL for a DOT collection) in the privacy of a restroom. Collector pours specimen into bottle. Bottle sealed with tamper-evident tape. Entire Custody and Control Form (CCF) completed.Marijuana THC Charts with Passing Percentile Trendlines. For explanation, if all else were equal and the odds of passing a urine drug test depended on only one factor, such as Smoking Frequency, a point on the 75th percentile trendline means that three out of four people should pass a drug test after that many days. Unfortunately, this is not ...THC Metabolism Phase 2: Cannabis exits the body. In phase 2, the process is all about preparing the drug to exit the body. In this step UGT enzymes are able to connect a glucuronide molecule to THC-COOH. This turns the chemical into a THC-COOH-glucuronide molecule, which is easy to excrete from the body in substances like urine …Common street names Detectable duration in urine aft er last dose Urine cutof points for reporting positive by screening assay*. Toxic blood level. Blood reference (therapeutic) range. Jet, Cat Valium. CLR201713_EditandCharts DUM_LM.indd 11. www.clr-online.com • MLO • CLR 2017-2018 11.Common street names Detectable duration in urine aft er last dose Urine cutof points for reporting positive by screening assay*. Toxic blood level. Blood reference (therapeutic) range. Jet, Cat Valium. CLR201713_EditandCharts DUM_LM.indd 11. www.clr-online.com • MLO • CLR 2017-2018 11.Amphetamine (including Methamphetamine); Barbiturates; Benzodiazepines; Cocaine; Methadone; Methaqualone; Opiates (Codeine, Morphine); Phencyclidine (PCP) ...The second, including blood and saliva test, is that of people currently under the influence of marijuana. Urine Test. This is the most commonly used drug test. The test is quite easy and all that is required is a sample of urine by the subject for the test to be carried out. The sample is first taken to the laboratory then screened under the ...Marijuana testing detects evidence of marijuana use. Also known as cannabis, marijuana is a plant that produces compounds called cannabinoids, such as tetrahydrocannabinol (THC). Cannabinoids have varying effects on the body and may be consumed for medical and recreational purposes. Marijuana testing is most often …A urine concentration test measures the ability of the kidneys to conserve or excrete water. A urine concentration test measures the ability of the kidneys to conserve or excrete w...Urine tests detect the non-psychoactive marijuana metabolite - THCCOOH - but do not detect the psychoactive component THC in marijuana, and therefore do not ...Mar 18, 2017 · Urine specimen temperature may stay at 90.5°F for up to 15 minutes. Although urine pH fluctuates throughout the day, it generally ranges between 4.5 and 8. Specific gravity normally ranges between 1.002 and 1.030. In normal human urine, creatinine concentrations should be greater than 20 mg/dL. Increased fluid will lower both the THC and the creatinine concentration on the urine while dehydration causes the exact opposite. Whew! All of that boils down to this: new use or the ceasing of use can be monitored through this ratio. If you have questions on this information please contact us at [email protected] or 1-888-464-8885.Immunoassay tests are commonly used for initial drug screening, but they can produce false positives and false negatives. GC-MS testing is more accurate but more expensive and time-consuming. The detection window for drugs in urine varies depending on the substance, ranging from 1-2 days to up to 12 weeks.THC from an edible can last anywhere from 3 days to as long as 90 days in your system. But, of course, the exact duration depends on several factors, People with faster metabolism eliminate THC faster than those with slower metabolism. The duration, frequency, and potency also matter, especially since THC can accumulate over time.Cannabis is the most consumed illicit drug worldwide, and its legal status is a source of concern. This study proposes a rapid procedure for the simultaneous quantification of Δ 9-tetrahydrocannabinol (THC), 11-hydroxy-Δ 9-tetrahydrocannabinol (11-OH-THC), 11-nor-9-carboxy-Δ 9-tetrahydrocannabinol (THC-COOH), cannabidiol (CBD), …Urine from marijuana users contains quantities of 9-carboxy-THC in both free and conjugated form, as well as other cannabinoids (THC and its metabolites) detectable by the test. When the manufacturer's instructions are followed, urine samples containing at least the stated detection level of 9-carboxy-THC will test positive at least 95% of the ...THC in the urine chart.Urine Urine Urine Urine Oral Fluid Oral Fluid Oral Fluid ... This chart is for general information only and is not intended to be used as medical advice. Detection ... Marijuana (light use) Mitragynine Tetrahydrocannabinol (THC)* Tetrahydrocannabinol (THC)* 1-7 3+ weeks 1-3 1-2 1-2 1-2 N/AThe cut-off level is the point at which the test result goes from negative to positive. A cut-off level is important to prevent false positive results, while still accurately detecting drug use. This means that negative samples can still contain the drug, just in a very low concentration that falls below the cut-off point.Jun 6, 2018 · Urine: A urine drug test for marijuana will detect marijuana for 3 – 30 days. Hair: Hair tests are more likely to detect regular than occasional marijuana use. Marijuana is visible for 90 days on a hair test. Saliva: The sensitivity of saliva tests is not well established in the case of marijuana. The presence of delta-8 and/or delta-9 carboxy tetrahydrocannabinol (THC-COOH) in urine is a strong indicator that the patient has used cannabis/marijuana. THC- ...Here is a guide to better understand the THC content of your cannabis. Smoke calculator Smoking, whether using a joint, bong or a bowl, results in more THC loss when inhaled — typically between ...Normal urine creatinine values generally range from 955 to 2,936 milligrams (mg) per 24 hours for males, and 601 to 1,689 mg per 24 hours for females, according to the Mayo Clinic. Creatinine ...Nov 25, 2022 ... Tests can detect weed for up to 30 days in your urine, up to 24 hours in your saliva, and up to 12 hours in your blood. Due to the many factors ...1. Introduction. Cannabis continues to be the most widely used illicit drug in the United States and in many countries around the world (), and is the most commonly detected drug of abuse in workplace urine drug tests ().Δ 9-tetrahydrocannabinol (THC), the major psychoactive component of cannabis, is rapidly metabolized to the inactive metabolite …[12] Urine drug testing following a positive result for cannabinoids should continue to ensure that no covert usage of drugs besides marijuana occurs and to ...Here is a guide to better understand the THC content of your cannabis. Smoke calculator Smoking, whether using a joint, bong or a bowl, results in more THC loss when inhaled — typically between ...The idea is to start out very slowly, beginning with 1 mg to 2 mg of THC per dose up to three times daily, and then add 1 mg to 2 mg to your daily dose every 1 to 2 days until you start to feel some noticeable effects. Then, even if the effects are subtle, I recommend holding at that dose for three days before further increasing.Marijuana is one of the most difficult substances to quickly clear out of your system. In fact, it takes between three and 10 days for a casual consumer to test clean from cannabis. For chronic consumers, metabolites of the herb (even CBD herb) have been detected in urine for up to a whopping 77 days after last consumption. Though, taking over ...The objective of this study was to develop and analytically validate a sensitive ultrahigh pressure LC (UHPLC)–electrospray ionization (ESI) combined with … Positive cutoff: 15 ng/mL. For medical purposes only; not valid for forensic use. The drug analyte detected in this assay, 9-carboxy THC, is a metabolite of delta-9-tetrahydrocannabinol (THC). Detection of 9-carboxy THC suggests use of, or exposure to, a product containing THC. This test cannot distinguish between prescribed or non-prescribed ... The second, including blood and saliva test, is that of people currently under the influence of marijuana. Urine Test. This is the most commonly used drug test. The test is quite easy and all that is required is a sample of urine by the subject for the test to be carried out. The sample is first taken to the laboratory then screened under the ...The immunoassay test, a fast and cost-efficient method, strives to uncover THC metabolites within your urine. Keep in mind, the lab doesn’t seek pure THC, but the bits and pieces leftover once your body has processed the THC. The bar is set quite high – you probably aren’t going to fail unless your urine has more than 50ng/mL of THC ...Feb 15, 2024 · The frequency and amount of marijuana used prior to stopping affect the severity and length of withdrawal and may appear in the form of physical symptoms such as: Changes in appetite. Flu-like symptoms (headache, sweating, shakiness, tremors, fever, and chills) Puking or vomiting. Stomach pain. Weakness or tiredness. Urine drainage bags collect urine. Your bag will attach to a catheter (tube) that is inside your bladder. You may have a catheter and urine drainage bag because you have urinary in...Jun 18, 2021 · Standard Drug Testing Cut-Off Levels from our SAMHSA Certified Labs. Updated On February 14, 2024 3:10 PM. Joe Reilly. Posted on June 18, 2021. This blog post shows several charts of drug testing cutoff levels so please scroll down to view all. These charts include Non-DOT testing with urine, hair and oral fluid as well as DOT regulated testing. This report was prepared in accordance with Section 4008 (Marijuana-Impaired Driving) of the Fixing America’s Surface Transportation Act (FAST Act), Pub. L. 114-94. The report summarizes what is known about marijuana use and driving. The report describes the absorption, distribution and elimination of delta-9-tetrahydrocannabinal (THC) the ...Urine tests detect the non-psychoactive marijuana metabolite - THCCOOH - but do not detect the psychoactive component THC in marijuana, and therefore do not ...Drug tests for cannabis — also known as marijuana, weed, or pot — measure THC and its metabolites. THC may be detected in blood or saliva 2–24 hours after use. Urine and hair tests have a ...While urine tests check for cannabinoid metabolites, blood tests look for the presence of THC, and they’re ideal for detecting recent drug use. According to an article by the Addiction Center, THC stays in the blood anywhere between 4 and 24 hours, while chronic users can test positive for up to a week. Hair TestingWhile urine tests check for cannabinoid metabolites, blood tests look for the presence of THC, and they’re ideal for detecting recent drug use. According to an article by the Addiction Center, THC stays in the blood anywhere between 4 and 24 hours, while chronic users can test positive for up to a week. Hair Testing[Federal Register Volume 89, Number 95 (Wednesday, May 15, 2024)] [Notices] [Pages 42486-42507] From the Federal Register Online via the Government Publishing …Maximum within-day urine concentrations of 11-OH-THC and THCCOOH metabolites by 1D-GC/MS from the Persistent THC Group are shown in Table 3. 11-OH-THC was detected in all of the specimens from 6 of 7 subjects and in 42 of 43 specimens from Subject D for an overall detection rate of 99.7% (n = 336). Urine 11-OH-THC Cmax ranged from 41 – 204 ng/mL.Laws regarding driving under the influence of marijuana vary from state to state, with a growing trend toward “per se” laws that use a level of delta-9-tetrahydrocannabinol (THC, one of the psychoactive substances in marijuana) in the blood, urine, or oral fluid as a determinant of intoxication. However, there is little evidence …This is reflected in the creatinine levels of 67.4, which is urine that is significantly less concentrated than that with a creatinine level of 262.6. In summary, the THC Level ALONE is only an indication that there is still THC present in the system. It is the THC/Creatinine Ratio that is used to determine whether new use of THC has occurred.A positive test for tetrahydrocannabinol (THC) metabolite indirectly indicates that THC, a psychoactive compound in cannabis, has been present in the body. Urine THC metabolite tests are not designed to identify synthetic cannabinoids or CBD. The test results do not identify route of THC exposure, source of exposure, specific timing of exposure ...1. Introduction. Cannabis continues to be the most widely used illicit drug in the United States and in many countries around the world (), and is the most commonly detected drug of abuse in workplace urine drug tests ().Δ 9-tetrahydrocannabinol (THC), the major psychoactive component of cannabis, is rapidly metabolized to the inactive metabolite …Dell PERC - Wikipedia WebA Dell PowerEdge RAID Controller, or Dell PERC, is a series of RAID, disk array controllers made by Dell for its PowerEdge server ...The metabolite of marijuana (THC-COOH) has a long half-life and can be detected in urine for more than 7 days after a single use. The presence of THC-COOH in urine greater than 100.0 ng/mL indicates relatively recent use, probably within the past 7 days. Levels greater than 500.0 ng/mL suggest chronic and recent use. Table of …Marijuana THC Charts with Passing Percentile Trendlines. For explanation, if all else were equal and the odds of passing a urine drug test depended on only one factor, such as Smoking Frequency, a point on the 75th percentile trendline means that three out of four people should pass a drug test after that many days. Unfortunately, this is not ...Cannabis potency plays a crucial role in determining the concentration of THC in urine. High-THC strains will result in higher THC levels in bodily fluids compared to strains with lower THC content. Additionally, the route of administration (e.g., smoking, vaping, or consuming edibles) affects how THC is absorbed and eliminated, influencing ...3. Wait 5 Minutes. A major benefit of Instant urine drug tests (i.e. cups and dip cards), as well as mouth swab drug tests, is that they are designed to yield results just a few minutes after a specimen (urine) collection. Tip: Do not read drug test results more than 10 minutes after a sample is collected.Accurately characterize marijuana use through urine THC testing. Mayo Clinic Laboratories’ new marijuana monitoring evaluation not only detects the metabolite of delta-9 tetrahydrocannabinol (THC), which is the most prominent psychoactive compound found in marijuana, but also for the metabolite of delta-8 THC.5 x Aydmed Professional 7-in-1 Rapid Drug Test Dip Cards | Urine Drug Tests Kit | Test for Cocaine, Opiates, Methadone, Amphetamines, Cannabis, ...[Federal Register Volume 89, Number 95 (Wednesday, May 15, 2024)] [Notices] [Pages 42486-42507] From the Federal Register Online via the Government Publishing …

These enzymes turn THC into 11-OH-THC, which is also psychoactive, and then into 11-COOH-THC, which is not psychoactive. 24 More than 65% of cannabis is excreted in the feces and approximately 20% is excreted in urine. 25 Most of the cannabis (80% to 90%) is excreted within 5 days as hydroxylated and carboxylated metabolites. …. 680 wrko

thc in urine chart

The urine marijuana test will be positive if the amount of THC in the sample is more than 50 nanograms per milliliter (ng/mL). If you use marijuana but your test is negative, it could be because your THC levels are below this level. A confirmation test can be done by a more sensitive method if the screening test is positive.For a Free Telephone Consultation. 800-641-1970. [email protected]. While moves to legalize marijuana have been active across the country, and medical marijuana has become legal in Ohio, the State’s DUI/OVI remain unchanged. Drug OVI’s can be challenged and won.The urine test is based on detection of 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid (9-carboxy-THC), a metabolite of delta-9-THC, which is the primary pharmacologically active component of marijuana. Studies involving humans indicate that 80%-90% of the total dose of delta-9-THC is excreted within 5 days--approximately 20% in urine ...Cannabis is the most consumed illicit drug worldwide, and its legal status is a source of concern. This study proposes a rapid procedure for the simultaneous quantification of Δ 9-tetrahydrocannabinol (THC), 11-hydroxy-Δ 9-tetrahydrocannabinol (11-OH-THC), 11-nor-9-carboxy-Δ 9-tetrahydrocannabinol (THC-COOH), cannabidiol (CBD), …This means that within 4-7 days, the vast majority of the THC will be gone from the system. In frequent users, however, a slower excretion occurs and is reflected by a 10-day terminal half-life. The researchers found that they could detect THC in the urine of frequent users for up to 2-4 weeks after quitting.Urine: A urine drug test for marijuana will detect marijuana for 3 – 30 days. Hair: Hair tests are more likely to detect regular than occasional marijuana use. Marijuana is visible for 90 days on a hair test. Saliva: The sensitivity of saliva tests is not well established in the case of marijuana.For a Free Telephone Consultation. 800-641-1970. [email protected]. While moves to legalize marijuana have been active across the country, and medical marijuana has become legal in Ohio, the State’s DUI/OVI remain unchanged. Drug OVI’s can be challenged and won.Positive cutoff: 15 ng/mL. For medical purposes only; not valid for forensic use. The drug analyte detected in this assay, 9-carboxy THC, is a metabolite of delta-9-tetrahydrocannabinol (THC). Detection of 9-carboxy THC suggests use of, or exposure to, a product containing THC. This test cannot distinguish between prescribed or non-prescribed ...Cutoff levels are expressed in nanograms (ng) per milliliter (mL) for urine and oral fluid testing or picograms (pg) per milligram (mg) for hair testing. It is important to select a specimen type and cutoff level based on the desired window of detection and any regulatory requirements. Only when a drug or drug metabolite is identified at a ...SVT/Adulterant Color Chart (if applicable) Product Insert ... urine. It is intended for in vitro diagnostic use ... THC, 150. Marijuana, THC, 20. Marijuana, THC ...1-10 days. ** Blood Drug Test. 2 days. ** Fingernail Drug Test. 90 Days. ** Alcohol Drug Test. 3-5 days via Ethyl Gluconoride (EGT) or 10-12 hours via traditional method. Marijuana Detection Time Chart. Urine Drug Test.Marijuana Metabolites, Urine. Test Resources. None found for this test Please visit our Clinical Education Center to stay informed on any future publications, ... 10 mL random urine collected in a plastic urine container, no preservative. Minimum Volume. 5 mL. Transport Container. Transport tube. Transport Temperature.Δ9-Tetrahydrocannabinol (THC) and 11-hydroxy-THC (11-OH-THC) concentrations in urine following E. coli β-glucuronidase hydrolysis were proposed as …Marijuana is one of the most commonly used addictive drugs in the United States. It contains tetrahydrocannabinol (THC), which is responsible for its psychoactive effects.Urine testing is commonly used to detect marijuana use, with commercial immunoassays targeting the metabolite carboxy-tetrahydrocannabinol (carboxy-THC).The detection limit …Marijuana testing detects evidence of marijuana use. Also known as cannabis, marijuana is a plant that produces compounds called cannabinoids, such as tetrahydrocannabinol (THC). Cannabinoids have varying effects on the body and may be consumed for medical and recreational purposes. Marijuana testing is most often …May 20, 2015 ... ... cannabis is detectable for different periods depending on the type of cannabis drug test used.The difference between saliva and urine cannabis ... With a currently accepted confirmation cutoff of 15 ng/ml for THC-COOH, which is most often used in urine-drug testing, the mean GC/MS THC-COOH detection times for the last positive urine sample, following the smoking of a single cigarette with 1.75 or 3.55% of THC, were 33.7±9.2 h (range 8−68.5 h) and 88.6±23.2 h (range 57−122.3 h ... .

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