Last updated : May 12, 2025
Do you want to ensure a safe and drug-free workplace for your business in the Merrifield, Minnestota area? Drug testing can help you accomplish exactly that so that you can improve workplace safety, increase productivity, and you may even receive a discount on your workers’ comp insurance. Thirteen states offer the incentive, and the discounts may range from four up to ten percent.
We provide a wide range of drug testing services throughout the Merrifield, MN area that help you to screen out new employees who use drugs, discourage existing staff from using drugs, and identify those who do. All while maintaining compliance with DOT regulations if you’re regulated, or just freeing you up to focus on other aspects of your business if you’re not. And we can perform screening at your location or ours, 24/7/365.
Unlike traditional drug testing facilities, USA Mobile Drug Testing is here 24/7—and we come to you to minimize downtime. When we’re managing your entire drug testing program, you receive all of the benefits without having to deal with the administrative details. With us in charge, you can be sure your workplace drug testing gets conducted on time, every time, no matter where your employees are located or when you need them tested.
You don’t need to interrupt your night shift’s sleep cycle to go to a testing facility during normal business hours. Never again will you have to pull an employee off-site for drug testing at a facility leaving the crew short staffed. We roll up on-site—no matter where it is—totally prepared to professionally administer the test.
When should you conduct a drug test
If your company is regulated by the Department of Transportation, you must adhere to strict regulations in regard to employee drug testing. Many employers of non-DOT-regulated companies mimic these guidelines when creating their own drug free workplace program.
USAMDT offers Merrifield businesses a program that customizes your drug testing policies for your specific needs. We’ll even write and then implement your policy, and provide employee education and staff training at your request.
There are many reasons to conduct workplace drug testing, including:
Pre-employment drug testing
The DOT requires an employee to have a negative drug test result on file before a driver is allowed on the road. Many employers of the general workforce require pre-employment drug testing before a new employee can begin work as well.
Random drug testing
Most people associate random drug testing with Department of Transportation compliance, however, it’s also common in other industries too. The department requires all members of a safety-sensitive workforce to have their names added to a random pool. This pool is used to randomly produce a list of employees who are required to take a drug test.
DOT drug testing
The DOT requires that all safety-sensitive employees are drug tested before they use a commercial motor vehicle (CMV). Additionally, drivers are entered into the random test pool and may be called up for drug testing at various intervals throughout the year. Post-accident, probationary, reasonable suspicion, and return to duty testing are also mandatory.
The DOT requires a urine test and looks for the following drugs:
- Amphetamines and methamphetamines
- Cocaine
- Marijuana
- PCP
- Opiates including synthetic opiates
- Oxycodone
- Oxymorphone
- Hydrocodone
- Hydromorphone
Reasonable suspicion drug testing
Your management personnel must be trained to identify substance use. If they suspect someone is impaired, they should know the company policy and have everything documented before approaching that employee. The suspected employee must then report for a drug test immediately.
Post-accident drug testing
If there is an accident on-site, drug testing all employees involved can help identify where responsibility lies and protect you from legal liability.
Return to duty drug testing
A certified SAP (Substance Abuse Professional) works with the driver, or other safety-sensitive employees, who have tested positive for drugs. The SAP signs them off as able to return to work after that safety-sensitive employee has a negative drug test result.
Drug testing methods
We can conduct drug tests throughout Merrifield utilizing several different methods, depending on your situation. Each method has pros and cons, and you should talk to one of our specialists if you need help deciding which is best for your situation.
All test specimens undergo an initial screen. The immunoassay (IA) test identifies a positive or negative result. The majority of drug tests are negative and this cost-efficient test saves employers money because no further testing is needed.
Tests registering a positive result are sent on for further confirmation testing. The gas chromatography/mass spectrometry (GC/MS) test confirms the positive result by identifying the drug and the level contained in the sample.
Urinalysis
The industry standard is still a urine drug test. (This is currently the only testing method approved for DOT drug testing.) Urinalysis is fast, easy, and inexpensive, but it does come with a few drawbacks.
You need access to a private bathroom, and you have to disable the sink and toilet, and pour a bluing agent in the water in the toilet bowl. Privacy concerns could also present a challenge because a test must be performed by a collector of the same gender.
Additionally, the privacy factor also provides an opportunity to attempt to cheat the test by adding adulterants, which creates a negative dillute or positive dillute drug test result, or substituting the specimen entirely. However, technological advances in both testing procedures and lab equipment make it increasingly difficult for dishonest employees to succeed.
This testing method identifies drug use from about a half-hour of ingestion up to a few weeks after discontinuing use. Chronic marijuana use is an exception to the rule. Habitual users can test positive for up to thirty days. You can learn more here: How Long Does Marijuana Stay in Your System?
Employers receive test results in a few days.
Mouth swab / oral fluid
This method of drug testing is relatively newer than other methods, yet is still every bit accurate as a urinalysis. Additionally, it’s just as fast, simple, and inexpensive. It provides the smallest window of detection though. Still, it drug-testing most drugs within minutes of use. It only detects drug use for a period of up to 72 hours prior to the test.
The most significant advantage of a mouth swab drug test is that it can be performed literally anywhere—even in plain sight of other employees. The test only requires placing a mouth swab between the lower cheek and gum. The employee holds it in place until it is saturated. The entire process rarely takes more than 5 minutes. Despite the claims we hear many drug users make, the only way to pass a mouth swab drug test is to not use drugs.
Results are received in just a few days.
Because it can identify recent drug use, it’s becoming a popular option for random drug testing. In fact, the HHS (The Health and Human Services Administration) approved the use of this testing method as an alternative drug testing method for all federally mandated employers as of January 1, 2020.
At this time, it’s uncertain whether or not the DOT will approve this method into its regulations.
Hair
The less common hair follicle drug testing method offers the same ease as mouth swab testing, however, it’s more expensive.
The fact that it provides a 90-day detection window overrides the added cost in the eyes of more and more business owners. In fact, the DOT officially requested that the hair test replace the urine drug test. The request is working through the chain-of-command and many expect to hear the final decision anytime now.
This test requires the collector to clip a small (less than 1” wide) section of hair, preferably from near the base of the scalp, and secure it in a zipper-lock plastic baggie. While this testing method is easy and convenient, some employees may have an issue with having their hair cut.
No worries.
Body hair can be taken instead and is tested by volume rather than length. Administrators collect enough hair to equal the size of a cotton ball about an inch in diameter.
Body hair offers a longer detection window compared to head hair. Hair collected from an employee’s head will detect drug use for about 90-days, while hair collected from the body will detect drug use for up to a year.
The hair test can’t detect current impairment or very recent drug use.