Employers can currently use hair testing if state law allows it—and many do, especially in the trucking industry—but the procedure may not yet be used to satisfy federal drug-testing requirements.
Can an employer ask for a hair follicle test?
California law allows the employer to conduct urine, hair, nail, saliva drug tests for pre-employment, circumstantial, random, and post-accident drug testing. The most common drug tests used by employers in California is the 5 panel Urine Drug Test Kit.
What jobs require hair follicle test?
Today we see many trucking companies administering hair testing in addition to the required DOT urine drug testing for truck drivers.
Other industries that are often using hair testing include, but are not limited to:
- Food industries.
- Gaming industry.
- Auto manufacturing.
- Oil and gas.
- Financial industries.
Can you refuse hair drug test?
We get calls all the time about people who shave their bodies, or wear their hair short, or both. We advise them that if they are scheduled for a hair test and arrive without enough sample to collect it can be considered a refusal to test, which their company may choose to assume is a failed test.
How often do companies use hair drug tests?
Urine, which is by far the most prevalent, with 90 percent of employers using it, according to background screening firm HireRight. Saliva, used by 10 percent of employers. Hair, used by 7 percent of employers.
How far back does a hair follicle test detect drugs?
How far back can a hair drug test detect drug use? Hair drug tests have the longest detection period, and can typically detect drug use for up to 90 days. Depending on the drugs used, a hair sample can sometimes help determine when drug use occurred and whether it’s been discontinued.
What can cause a false positive hair follicle test?
Prescription medications and certain foods, such as poppy seeds, may contain compounds that might lead to false positive results. Hair samples undergo a two-step process to ensure accurate test results. The first step involves an enzyme-linked immunosorbent assay (ELISA) test, which is a rapid screening method.
How much does hair follicle testing cost?
A hair drug test is more expensive than a urine drug test. An at-home kits costs between $64.95 and $85. Drug tests performed in a hospital or laboratory may cost between $100 and $125.
What happens if you test positive on a pre employment drug test?
Following a positive result: If you test positive for drugs or alcohol, an MRO will contact you for additional questioning, such as if you take any prescription or herbal medications that could have impacted the test results. If you do, you may be asked to show proof of a valid prescription.
What is the most common pre employment drug test?
Urinalysis – A urine test is the most common form of pre-employment testing and is typically conducted once a conditional offer of employment has been sent. A urine test can show traces of drug use even after the effects of the drug have worn off and remain in the body for an extended period of time.
Can a hair follicle test detect one time use?
If an individual is an infrequent or first-time drug user, a hair follicle test may not detect drug use a few days before the test because it takes time for hair to grow. Employers need to weigh that fact into their choice of a drug test method. This test could be a reprieve for a sporadic or one-time user, however.
Does bleaching affect hair drug test?
However, hair samples can be manipulated by cosmetic treatments, altering drug concentrations which eventually leads to false negative hair test results. In particular oxidative bleaching of hair samples under alkaline conditions significantly affects incorporated drug concentrations.
How long does it take for a hair follicle test to come back?
Results for specimens that screen negative for all drugs are generally available within 48 to 72 hours after specimens are received at the laboratory. Results for confirmation testing of presumptive positive screens are usually available within an additional 72 hours.
How far back does a hair follicle test detect alcohol?
Alcohol EtG Testing – Urine or Hair
The presence of EtG in urine is a definitive indicator that alcohol was ingested. With urine EtG alcohol testing there is about an 80 hour lookback period, with hair follicle EtG alcohol testing detection is up to 90 days.
How short should I cut my hair to pass a drug test?
1.5 inches of hair is needed for the standard 90 day drug test. If head hair it too short, body hair can be used.