Complete and Accurate Toxicology Testing
Fast, Accurate Toxicology Testing with In-House Results
We offer oral swab and urine testing. Every positive screen is confirmed in our own lab using LC/MS. Results are accurate, well-documented, and returned fast.
Partner With MD Diagnostics Order Toxicology TestingWhy Providers and Patients Choose Us
The Local Lab Advantage
MD Diagnostics is a family-owned, CLIA-certified lab in St. Louis. We offer advanced testing with hands-on local service. Walk-ins are welcome. Clinics across the region count on our fast turnaround.

Testing Made Simple for Individuals
Not every test comes through an employer or doctor. Sometimes you just need private testing done on your own terms.
No appointment needed.
Clear cash pricing.
Quick collections that take only minutes.
Results ready within 24 to 48 hours.
Testing for work, school, legal, or personal reasons? We keep it simple and private.
Order Toxicology Testing Toxicology Testing Options
We offer multiple testing methods for providers, employers, schools, and recovery programs.
Oral Swab Testing
Oral fluid testing is non-invasive. It allows for observed collection, which cuts the risk of tampering.
Detects most substances within a three-day window. No special setup needed. Great for high-volume or on-site screening.

Urine Screening
Urine testing is one of the most widely used drug detection methods. At MD Diagnostics, both screens and results are confirmed in-house.
Detects opioids, cocaine, THC, and more. Confirmed with LC/MS. Results in 24 to 48 hours.

Hair Follicle Testing
Hair testing has a longer detection window. It tracks long-term substance use patterns. Employers and recovery programs use this option when extended tracking is needed.

Programs and Clinics We Serve
Pain management and recovery centers that need fast, solid results
More Info Behavioral health programs monitoring patient compliance
More Info Each program receives reliable testing, clear reporting, and fast turnaround times.
Toxicology Testing FAQs
What is the difference between urine and oral swab testing?
Urine tests cover more substances over a longer window. Oral swabs are non-invasive, harder to tamper with, and detect recent use.
How long do results take?
Most results are ready within 24 to 48 hours.
Do you confirm all positive screens?
Yes. Every positive screen is confirmed in-house for accuracy.
Where can I get toxicology testing in St. Louis?
Visit our St. Louis lab for walk-in or scheduled testing. We also ship kits to clinics across the Midwest.
Ready to Partner with a Trusted Toxicology Lab?
MD Diagnostics delivers accurate results, flexible testing options, and the speed and care you expect.
Partner With MD Diagnostics Order Toxicology Testing