This is the ultimate tool to use to study for the Radiation Therapy Registry and for those studying for CQR testing. It outlines and explains important components for the test. Provides useful math equations. Two mock exams with a total of 400 example test questions. This book has been updated in 2022 with newer material. Check out the student group on facebook: "Radiation Therapy Students" as well as the online review course and tutoring at www.radproacademy.com for more!