This new edition is a fully updated guide to radiation safety practice for nuclear medicine professionals, and assists the nuclear medicine technologists in taking their board certifying examination. The NRC requires the appointment of a radiation safety officer (RSO) or an associate radiation safety officer (ARSO) for different uses of radioactive material. Board certified nuclear medicine technologists are eligible to be RSO and ARSO in specific uses of radioactive material after successfully completing a 40-hr or 200-hr course on radiation safety depending on the type of RAM use. This book covers all subject materials in these courses on radiation safety.