Medical laboratory scientists strive to answer medical questions and solve medical mysteries. When you major in medical laboratory science, you'll learn to analyze blood, body fluids, cells, tissues, and other specimens to determine both the causes of diseases and their appropriate treatments. Medical laboratory scientists are essential members of the healthcare team who play a central role in the detection, diagnosis, treatment, and monitoring of disease with minimal direct patient interaction. Medical laboratory scientists perform and interpret laboratory testing. More than 70% of all medical decisions are based on data that medical laboratory scientists provide to the healthcare team.