Why vets prefer Pet Preferred? Our diagnostic laboratory provides veterinarians, all businesses involved in animal health care and pet owners with precise and quick diagnostic results. Our goal is to help your dog or cat have a healthy and happy life. Our allergy test for dogs and cats helps pet owners neutralize the problem. By doing this we have created an affordable test that utilizes the latest in scientific discoveries and diagnostic technologies. We work day and night to ensure that all test results come back within our 24 hour turnaround time and include no false positive. After all your pets are family and should be treated as such.