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This was fact checked by our expert Medical Review Board for accuracy and objectivity. about our editorial policy and review process. Marijuana testing detects evidence of marijuana use. Marijuana, also known as cannabis, is a plant that produces compounds called cannabinoids, such as THC. Cannabinoids have varying effects on the body and may be consumed for medical and recreational purposes. Testing Weed levels drug test marijuana use may be considered for a variety of purposes, including medical screening and employment testing. Although marijuana use can be tested alone, this test is often combined with other substances as part of a broader screening panel, such as a panel drug test.
Positive of screening panels should be confirmed by a second, more specific confirmation test. A marijuana test is used to detect evidence of marijuana use.
Testing for marijuana and other drugs may be performed for many reasons:. Marijuana testing detects evidence of marijuna use, not current intoxication or addiction. Marijuana can be detected for a period of days, weeks, or months after use. The length of this detection window depends on the amount and frequency of marijuna used as well as the sample type:. Metabolites are substances created while the body is breaking down a drug.
Marijuana produces over cannabinoids, but only a few cannabinoids and their metabolites are measured in marijuana testing. Other cannabinoids, including cannabidiol CBDare less frequently included in marijuana testing. Synthetic cannabinoids are man-made chemicals, produced and sold as an alternative to marijuana. While many users believe that synthetic cannabinoids are safe, these products may cause severe illness or even death. Initial urine Weed levels drug test screening tests do not detect synthetic cannabinoids.
Marijuana testing may be required during pre-employment testing and as a part of drug screening ordered by courts and other organizations. Many federal employees are required to have regular drug testing as part of a drug-free workplace policy. Drug-free workplace programs are implemented in a variety of federal industries, including transportation and national security. Law enforcement officers and emergency service providers may also be required to undergo drug testing as part of a drug-free workplace program.
Drug testing requirements are impacted by federal, state and local laws. Although over half of states have legalized medical or recreational marijuana use, Weed levels drug test and other organizations may still penalize individuals for using marijuana. Marijuana remains illegal under federal law.
Marijuana testing can be performed in a medical facility or laboratory. Samples for testing can also be obtained on-site at a workplace. Marijuana tests may be ordered by a doctor or administrator of a program that requires drug testing. Tests may also be purchased over-the-counter and conducted at home or by Weed levels drug test samples to testing facilities through the mail. At-home drug tests are available to screen for marijuana use. At-home marijuana testing may be conducted on samples of hair, saliva, or urine.
Urine and saliva drug testing may be completed in the home, while hair follicle drug testing is collected at home and mailed to a laboratory for analysis. Testing for marijuana use at home is a form of initial drug screening and positive require confirmation testing.
An at-home drug test can be used for an initial test, while confirmation testing requires a sample to Weed levels drug test sent to or collected by a laboratory. An at-home marijuana test is not a substitute for drug testing overseen by a health care professional. For questions about the costs of marijuana testing, patients should talk to their doctor or an administrator in the program requiring drug testing. Online or over the phone, no doctor's referral needed.
Most test sent directly to you in days. Initial testing for drug use is most often performed on urine and requires a clean catch urine sample. Clean catch describes a method for collecting urine that prevents germs from contaminating the urine sample.
For laboratory-based testing, a clean catch urine sample is collected in a laboratory, medical facility, or other testing site. At-home marijuana testing instructs users on collecting a sample of hair, saliva, or urine using instructions provided in the test kit. Before a drug test, patients should discuss testing procedures with their doctor or staff at the testing location. Procedures for collecting urine vary based on the reason for testing and the requirements of the test site.
In some cases, collection of a urine sample may be monitored or directly observed by a medical technician or trained staff member. Monitoring the collection of a urine sample involves having a trained professional check the restroom before the patient collects their sample. Direct observation is a more invasive requirement, involving a professional watching a person during sample collection.
Monitoring and Weed levels drug test observation ensure that a patient does not tamper with the urine sample. When using an at-home test kit, make sure to read any instructions provided and prepare sample collection materials before obtaining a sample. Prior to taking Weed levels drug test clean catch urine test, patients are instructed to wash their hands and clean their genitals with a wipe or pad provided by the staff member. Patients then begin by urinating into the toilet before moving the collection container into the urine stream.
Once the collection container is filled to the appropriate level, it is moved out of the urine stream and patients finish urinating into the toilet. Collecting blood for a drug test involves having blood drawn from a vein in the arm by a health care provider.
For a drug test that requires a sample of hair, a small amount of hair is cut, usually from the scalp. Drug testing is usually painless, although patients may experience slight discomfort during a blood draw. Samples required for drug testing can usually be obtained in less than 5 minutes. At-home marijuana tests require a sample of hair, saliva, or urine. Collecting these samples is performed in the same way as laboratory-based testing. Many at-home urine tests allow users to complete the test after collecting the urine sample. These test kits include a testing device such as a test strip that is immersed in the urine sample.
After a urine sample is collected, patients seal the sample container and return it to the health care provider for testing. There are no restrictions on activity after a marijuana test. from a marijuana test are often available within a few hours to a few business days. Depending on the reason for testing, patients may learn about their test through their doctor, the testing site, or an administrator of the organization requiring testing.
Test reports may also be sent electronically or in the mail. of at-home urine tests are typically available within several minutes of conducting the test.
An initial marijuana urine test report is qualitative, meaning that it may only show a positive or negative result and not additional information about the type and level of specific cannabinoids. Reference ranges for marijuana testing are not universal and depend on the laboratory or agency conducting the test.
Weed levels drug test negative on a marijuana test indicates that the cannabinoids or metabolites measured were not found in the test sample. A positive marijuana test indicates that cannabinoids or metabolites were detected in the test sample. A positive drug test result requires additional confirmation testing conducted in a laboratory. Some patients may be concerned about the possibility of a positive marijuana test result due to passive or secondhand exposure to mariuana smoke.
Although no test is perfect, mariuana tests are highly accurate in detecting evidence of marijuana use. False positive on marijuana tests are rare. In order to reduce the risk of inaccurate testprofessionals take special precautions during sample collection, transportation, and testing. Clean catch urine samples reduce the risk of contaminating urine with germs, and transporting of test samples is carefully documented through a process called chain of custody.
When reviewing testpatients can ask their doctor or the test Weed levels drug test about the laboratory that conducted the test, the reference range usedDo I need follow-up tests? Positive on an initial test for marijuana require an additional confirmation test. Confirmation testing is especially important when a positive result on a marijuana test has implications for employment, legal issues, or medical treatment decisions.
If a patient tests positive on a marijuana test, their doctor may also suggest an evaluation for cannabis use disorder. Drug testing can be a stressful process. Patients may find it helpful to ask their doctor questions about marijuana test. Helpful questions may include:.
Medical Encyclopedia. Substance use- Marijuana. Updated May 10, Accessed June 3, Updated May 21, Accessed May 31, Clean catch urine sample. Updated May 25, Medical marijuana.
Centers for Disease Control and Prevention. Synthetic cannabinoids: What are they? What are their effects?. Updated April 24, About synthetic cannabinoids.Weed levels drug test
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Interpretation of Workplace Tests for Cannabinoids