John RidleyJohn W. Ridley, Ph.D., RN, MT (ASCP), has served as a medical technologist, trainer, educator, manager, and program administrator throughout a varied, 30-year career with a strong emphasis on medical laboratory occupations. After serving as a patientcare technician and respiratory therapy assistant, Dr. Ridley entered military service, became a combat medic, and then trained and served as a medical laboratory technican at Brooke Army Medical Center, Fort Sam Houston, Texas. Following his military service, Dr. Ridley earned a bachelor of science degree in zoology and a master's of education degree from the University of Georgia. To complete his education, Dr. Ridley earned a Ph.D. in health and human services, with an emphasis in psychology, and became a registered nurse. He currently serves as director of medical laboratory technology at West Central Technical School in Waco, Georgia, and is the author of several textbooks on clinical laboratory science topics. Read More Read Less