What are the opening hours?

Monday 9am - 5pm Tuesday 9am - 5pm Wednesday 9am - 5pm Thursday 9am - 5pm Friday 9am - 5pm

Fastest Labs

Rapid, reliable results backed by technology. When you need drug, alcohol, or DNA testing, rely on Fastest Labs® for comprehensive personal testing services.

With more than 10 years of experience in the industry, we have built a superior reputation for fast, accurate testing and outstanding customer service. We're proud to have some of the cleanest facilities around and our certified collectors work hard to ensure customer comfort throughout the entire testing process.

11/03/2025

Alcohol testing is crucial for ensuring safety in safety-sensitive positions and maintaining compliance. Fastest Labs provides accurate, court-admissible results quickly because, with safety and compliance, timing is everything.

⚡ Get reliable alcohol testing now: fastestlabs.com/tri-cities

10/31/2025

We’re not saying you should dress as a drug test, but we’d love to see it.

Tell us what your costume is this year in the comments! Funniest wins a virtual high five 👻

HAPPY HALLOWEEN!!! 🎃

10/29/2025

With on-site drug and alcohol testing, you reduce downtime, improve compliance, and streamline team operations. Ideal for schools, warehouses, and healthcare settings.

Learn more: fastestlabs.com/tri-cities

10/27/2025

Hiring temporary employees before the holidays? Our pre-employment and random drug testing help ensure safety across all shifts and locations.

Start screening today: fastestlabs.com/tri-cities

10/23/2025

Post-accident testing must happen quickly and follow specific procedures. We help you act fast and correctly, protecting your team and business.

Talk to our experts: https://www.fastestlabs.com/blog/employer-services/understanding-post-accident-drug-testing-require/

10/21/2025

Not all tests are created equal. Court-admissible testing follows strict chain-of-custody rules.

⚖️ Have questions? Ask below.

10/16/2025

October highlights the importance of early intervention. Employers can help prevent workplace accidents, absenteeism, and turnover by offering drug-free programs, confidential testing, and educational resources.

Read about all our employer services: https://www.fastestlabs.com/blog/employer-services/

10/14/2025

Our paternity testing is quick, accurate, and admissible in court, ideal for custody cases, birth certificates, and peace of mind.

Learn more: fastestlabs.com/tri-cities

10/09/2025

Sweat patches? Hair samples? There’s more to drug testing than p*e cups.

Share the most surprising method you’ve heard of below!

10/07/2025

Fall is a great time to review and potentially update your policies.

With evolving cannabis laws, your drug and alcohol policy may need a refresh. We help design or revise compliant testing policies tailored to your industry.

Get policy help: fastestlabs.com/tri-cities

10/02/2025

Do you know the signs? Substance misuse can show up in subtle ways at work, school, or home. Let’s reduce the stigma and encourage support.

Learn the signs: https://www.fastestlabs.com/blog/employer-services/a-guide-for-reasonable-suspicion-testing/

09/29/2025

In legal situations—whether it’s child custody, immigration, or workplace incidents—it’s not enough to get accurate results. Court-admissible testing must follow strict procedures, including proper ID verification, chain-of-custody forms, and certified collectors.

At Fastest Labs, we meet these standards for peace of mind and legal credibility.

⚖️ Book your court-admissible appointment today: fastestlabs.com/tri-cities

Address

654 Eastern Star Road
Kingsport, TN
37663

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Telephone

+14239199335

Website

https://www.fastestlabs.com/tri-cities/

Alerts

Be the first to know and let us send you an email when Fastest Labs posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Practice

Send a message to Fastest Labs:

Want your practice to be the top-listed Clinic in Kingsport?