John 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 patient care 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 de...