FAQs

Some tests may not yet appear on our website. If you don’t see the test you need listed, please contact us at 1-800-862-8635. If we do not perform the test in-house, we can often subcontract it to another accredited laboratory.

Each test page includes information about the appropriate sample type and any specific submission requirements. For general guidance on collecting, packaging and mailing samples, please refer to How to Submit a Sample.

The VMDL is officially closed on weekends and the following holidays: New Year’s Day, Martin Luther King Jr. Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Veterans Day, Thanksgiving Day, the Friday after Thanksgiving and Christmas Day.

Post office mail is picked up on Saturday mornings, and some lab sections may continue working on specimens. To help avoid delays, please ship packages so they arrive Monday through Friday. Testing for samples received immediately before a holiday may be delayed.

A small number of employees work on weekends and holidays to complete testing. Additionally, a pathologist is available on Saturdays from approximately 9:30–11:30 a.m.

Laboratory section contacts

SectionContact
Bacteriology and Mycology573-882-9245 or 573-882-9259
Clinical Pathology573-882-3338
Histopathology573-884-9279
Molecular Diagnostics573-884-9257
Serology573-884-9280
Toxicology573-884-9241


For emergency necropsy services, please call 573-864-7160. A veterinary student assigned to emergency duty will respond.

For emergency laboratory testing, please make prior arrangements with the appropriate VMDL section that performs the test.

Yes. The VMDL offers a way to ship packages overnight through FedEx at a significantly reduced cost. Please call 1-800-862-8635 or 573-882-6811 for more information about discounted sample shipping.

The submitting client (a veterinarian, animal owner or business owner) is responsible for payment of all services provided by the VMDL. Please call 1-800-862-8635 to set up an account.

Business days refer to Monday through Friday, excluding holidays. One ‘day’ equals 24 hours.

Yes. Please download the Client Supplies Order Form.