State of the Art Diagnostics for All Patient Types
A new age of diagnostic testing for pain management, substance abuse, podiatry, urology, long-term care, memory care, and assisted living.
Skilled Nursing:
Special Risks of Infectious Diseases for Residents of Nursing Homes
principle diagnostics
PGx
Principle Diagnostics Pharmacogenomic testing delivers straightforward and individualized results which can improve medication treatment plans for all patients. The patient-specific results can reduce adverse drug side-effects by providing drug-to-drug interaction information and appropriate dosages.
Latest News
Aqueous Health Appoints Robert J Zollars to Board of Directors
Aqueous Health announced today that healthcare industry veteran, Robert (Bob) J Zollars has joined its Board of Directors. "We are very pleased to have Bob on our Board to help guide our strategy and plans," said Dan Eckert, Chairman & CEO of Aqueous. "I am...
Aqueous Health Makes Strategic Investment in Principle Diagnostics
PHOENIX, July 2, 2025 /PRNewswire/ -- Aqueous Health announced a majority investment in Principle Diagnostics, a leading diagnostic laboratory based in Bethlehem, PA. Principle was founded in 2015 and provides toxicology, molecular and genetic testing services to a...
Illicit Use of Medetomidine and Associated Risks: The Role of Clinical Toxicology at Principle Diagnostics Lab
Introduction Medetomidine is a potent alpha-2 adrenergic agonist used as a sedative and analgesic in veterinary medicine. Although it is not approved for human use, its recent appearance in forensic and clinical toxicology cases involving illicit drug use and...
WE TRACK THE TRUTH
Laboratory Service
Principle Diagnostics Laboratory (PDL) is a state-of-the-art laboratory, specializing in the testing of toxicology and wellness for all clientele. Licensed in over 40 states, PDL tracks the truth in every sample to make sure all health care organizations are able to properly diagnose their patients.
Built On Trust & Credibility
Certifications & Accreditations
We are excited to continue to improve our lab services as we expand.
Contact Us
We would be happy to discuss your needs in person at our offices or yours:
2550 Brodhead Road, Suite 105
Bethlehem, PA 18020
For all general inquiries call us at:
If you are looking for a reliable and experienced clinical diagnostic laboratory, look no further than Principle Diagnostics. We have many years of experience working with a wide range of clients. From individuals seeking to diagnose troubling medical conditions to large medical facilities and research organizations. Our team is comprised of experts in all aspects of the diagnostic process from specimen collection to analysis and interpretation of test results. Whether you need Toxicology, Molecular or Genetic testing, we have the knowledge and expertise to deliver highly accurate results. So, if you are ready to partner with a leading diagnostic laboratory, contact us today.
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