New Bolton Center Kennett Square, PA
Emergencies & Appointments:
Ryan Hospital Philadelphia, PA
Penn Vet Diagnostic Lab Sections

Laboratory Sections

About COVID-19 Testing

The PennVet Diagnostic Labs will not be testing the general companion animal population for the SARS-CoV-2 virus. 

According to the United States Department of Agriculture (USDA), the testing of companion animals is not recommended.

Testing may be done by animal and public health officials if they agree that there is a link to a known human case. If you have such a case, please contact your state animal health official.

In Pennsylvania, please call the Pennsylvania Department of Agriculture at 717-787-4737 and ask to speak to someone about testing an animal for SARS-CoV-2.    

The Penn Vet Diagnostic Lab includes experienced parasitologists and specialized and board-certified microbiologists, anatomic pathologists, and clinical pathologists as well as highly-skilled and experienced laboratory technicians, histotechnologists, administrative staff, and residents.  Daily collaboration within and between laboratories maximize diagnostic capabilities and provides you with the highest levels of patient care.

  • Biopsy and Autopsy Services - Histopathology Laboratory
    The Lab at Ryan

    The Biopsy and Autopsy Services have provided sample interpretation for veterinarians across the nation and abroad for more than 35 years. The high volume of service exemplifies the pursuit of academic excellence and quality diagnostics.

    The Biopsy Services include the general biopsy service and specialty biopsy services, which include dermatopathology, lymphoma subtyping, neuropathology, ophthalmic pathology, osteopathology, and oral pathology.

    The Autopsy Service provides complete gross and histopathologic examinations on patients by referral from veterinarians. Please refer to the guidelines for submission of referral autopsies. Postmortem examinations can also be performed by veterinarians and tissues may be submitted through our Biopsy Service.

    Histopathology Laboratory Hours:
    • Monday through Friday: 8:00 am to 5:00 pm (Last specimen accessioned at 4:30 pm)
    • Phone: 215-898-8857 (office); 215-898-7874 (lab)
    • Fax: 215-898-0719
  • Clinical Pathology Laboratory and Cytopathology Service

    The technical staff and clinical pathologists of the Clinical Pathology Laboratory perform routine and more advanced testing in a number of areas for both patients of the Ryan Veterinary Hospital and for patients of veterinarians and practices, both within the region and more distant. Laboratory work encompasses routine and more advanced hematology, clinical chemistry, endocrinology, urinalysis, coagulation, and immunohematology testing, all with onsite supervision, guidance, and training by board-certified clinical pathologists. Experienced clinical pathologists routinely consult with each other and other laboratory sections on submitted cytology and hematology cases. The Cytopathology Service welcomes calls and consultations for veterinarians.

    Laboratory Hours:

    • Monday through Friday: 8:00 am - 5:00 pm
    • Saturday/Sunday: 9:00 a.m. - 1:00 pm

    Cytology submissions by 4 pm will be read same day. STAT submissions arriving by 4:30 pm will be read same day.

    • Laboratory Phone: 215-898-8877
    • Laboratory Fax: 215-898-9352

  • Clinical Microbiology Laboratory

    The Microbiology Laboratory performs aerobic, anaerobic, fungal, and mycobacterial cultures, and antibiotic susceptibility testing for patients of both the Ryan Veterinary Hospital and patients of practices across the US. Microbiologists provide consultations regarding results and antibiotic selection for clients of the laboratory. The laboratory has a specific expertise and extensive experience with dermatologic infectious disease and work closely with our dermatopathology and cytology services.

    Laboratory Hours: 

    • Monday through Friday 8:00 am to 5:00 pm
    • Laboratory Phone: 215-898-7858
    • Laboratory Fax: 215-898-0503
  • Clinical Parasitology Laboratory
    Diagnostic Parasitology LaboratoryThe Parasitology Pathology Laboratory provides parasitology services for the large and small animal hospitals of Penn Vet as well as regional practitioners and the state diagnostic laboratory. Fecal examinations for parasite eggs and cysts, identification of intact parasites, quantitative fecal egg counts and serology for heartworm and some tick-borne infections are all done in our lab in the Ryan Veterinary Hospital.

    Laboratory Hours:

    • Monday through Friday: 8:30 am to 4:00 pm 
    • Laboratory Phone: 215-898-7183 
    • Laboratory Fax: 215-573-8115

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