Reference Labs
Laboratory Testing Solutions for
Reference Laboratories
When your clients require testing beyond in-house capabilities, USDTL is your trusted partner. We provide advanced drug and alcohol testing—including extended panels and alternative specimen types—so you can facilitate every request without losing customers. Seamlessly expand your offerings while maintaining control of your client relationships.

Expanding Your Test Menu Without Expanding Your Lab
We serve as an extension of your laboratory, providing specialized testing you may not offer in-house while maintaining quality, speed, and consistency.
- Access to specialized and emerging tests
- Reliable overflow and referral support
- Consistent quality and fast turnaround times.
- Seamless report integration
- Protect your client relationships
Recommended Specimen Types
Environmental Exposure: Hair Testing
~3 month detection window, environmental exposure drug test identifying passive or contact exposure to substances.
Hair Testing
~3 month detection window, simple to collect, difficult to adulterate, non-biohazard specimen.
Fingernail Testing
~3-6 month detection window, culturally sensitive, non-invasive donor collection, non-biohazard specimen, and strong resistance to adulteration
Meconium Testing
20 week detection window, easier to collect than neonatal urine, fast results, HL7 integration, policy support.
Umbilical Cord Tissue Testing
~20 week detection window, always available, single collector, fast results, HL7 integration, policy support
Ready to Partner with USDTL?
For over 25 years, USDTL has delivered accurate, reliable laboratory testing services across 200 locations nationwide. From hospitals to government agencies to employers, we partner with organizations that demand precision.

























