Infectious Disease Testing from Quest Diagnostics

As the world's leading provider of diagnostic testing, information and services, we offer a full infectious disease test menu and unparalleled access and convenience with:

Hepatitis Testing
Convenient, consolidated viral load, genotyping and screening test ordering
An extensive molecular test menu for both HBV and HCV, including HEPTIMAX™ Quantitative HCV RNA Testing

HIV Testing
HIV screening
Confirmation of HIV infection
Immunology testing
HIV viral load testing
HIV drug resistance testing
A full range of HIV RNA assays appropriate for DHHS Guideline recommendations for HIV infected patients
HIV Viral Load to Drug Resistance Reflex testing (genotype, VirtualPhenotype or phenotype) for results with >600 copies/mL, providing an efficient, economic and medically relevant testing decision tree

Access and Convenience
A national network of laboratories with locations in or near all major cities and esoteric testing laboratories on both coasts.
Convenient specimen collection options, including in-office phlebotomy and courier services and more than 2,000 conveniently located patient service centers across the country

Innovation and Quality
Available consultation with our Quest Diagnostics Nichols Institute scientific staff, one of the most experienced and comprehensive clinical diagnostics teams in the world
Six Sigma methodology, which helps us measure results and identify ways to continually improve the processes we use in every part of our business
Additionally, Quest Diagnostics scientists stay at the forefront of clinical breakthroughs
Participating in multiple clinical trials of HIV investigations
Collaborating with multiple research groups including NIH, CDC and several universities.

Online Resources for Healthcare Professionals
Obtain test ordering codes and specimen requirements from our online Test Menu
Learn about infectious disease test selection, utilization, and interpretation in our Test Selection and Interpretation Guide
Simplify test ordering and results reporting with our connectivity solutions

Online Test Information for Your Patients
Your patients can learn about health conditions and laboratory tests in our Patient Health Library.

Contact a Quest Diagnostics Sales Representative, learn more about our testing services, and become a client
Contact a physician sales representative
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Contact a sales representative to learn more about our testing services or to become a Quest Diagnostics client.