In health care, the term sentinel event describes one that is unanticipated and results in death or severe physical or psychological injury to a patient or patients.

What makes the yardstick test a direct measurement of reaction time? a. the further the yardstick falls, the slower the reaction time. b. yardsticks have numerical markings for length. c. yardsticks are designed to measure reaction time. d. all of the above select the best answer from the choices provided.