Final answer:
Veterinarians meet professional practice standards for ordering lab tests by completing a degree in veterinary medicine that includes relevant courses. Pathologists oversee clinical laboratories for disease detection through the examination of tissue specimens.
Step-by-step explanation:
Veterinarians meet professional practice standards for ordering lab tests by completing a degree in veterinary medicine that includes courses in comparative zoology, animal anatomy and physiology, microbiology, pathology, chemistry, physics, and mathematics. They are trained to perform lab tests and diagnose diseases in animals, including humans. Additionally, pathologists, who specialize in the laboratory detection of diseases, oversee clinical laboratories for evaluating body tissue and blood samples for the detection of diseases or infections.