| Radiograph | A specially sensitized film that records the internal structures of the body by the passage of X-rays. An X-ray film. |
| Range of Motion | The range, measured in degrees of a circle, through which a joint can be extended and flexed. |
| Reflex | An involuntary action resulting from a stimulus. |
| Rehabilitative Care | A type of chiropractic care with the objective of strengthening the spine and providing optimum healing of the function of the spine, associated tissues, and organ systems. |
| Report of Findings | A short presentation, usually by the doctor, describing the practice members problem, how long it will take to correct, and the prognosis. |