Reasons for Testing

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We perform more than 9 million drug tests annually and offer our clients a comprehensive range of laboratory and on-site drug tests, services and programs. Common reasons for drug testing include pre-employment, random, reasonable suspicion, post-accident, return-to-duty and follow-up testing.

Furthermore, companies and organizations perform specialized drug tests on athletes or employees at risk for steroid abuse and employees in Occupational Safety & Health Administration (OSHA) roles.

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Pre-Employment Drug Testing

Substance abuse can compromise the integrity and stability of your workplace. Pre-employment drug testing can help you make confident, informed decisions about current and prospective employees and prevent the hiring of individuals who abuse drugs.
Read more about Pre-Employment

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Random Drug Testing

Random testing lets an employer select, using a random selection process, one or more individuals from all of the employees included in the employer’s workplace drug testing pool to drug test.
Read more about Random Testing

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National Clinical Testing

We offer more than 3,000 laboratory tests at facilities across the country, so clients with complex needs can quickly access the services they need.

 

Read More about National Clinical

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OSHA Drug Testing

Quest Diagnostics offers a full line of drug testing services that can assess exposure to harmful or hazardous substances in accordance with OSHA regulations.
Read More about OSHA Drug Testing

Quest Diagnostics employee working in the toxicology laboratory

Reasonable Suspicion Drug Testing

Reasonable suspicion drug testing determinations are sometimes the most challenging aspects of a drug-free workplace program, yet can have a profound impact on safety, well-being and productivity.
Read More about Reasonable Suspicion Drug Testing