A blood test or lab test allows us to learn information about your dog's health which can only be found from collecting a sample of blood and having it analyzed. (thedrakecenter.com)
The researchers also collected samples from the mice's large intestines (to measure bacteria content) and liver tissues (to measure fat deposits). (sciencedaily.com)
Medical assistants are also responsible for collecting samples for laboratory testing. (theemedicalassistants.com)