RT Journal Article SR Electronic T1 Root Cause Analysis in Nuclear Medicine for Sentinel Events JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP jnmt.122.264851 DO 10.2967/jnmt.122.264851 A1 Jitesh Dhingra A1 Mary Beth Farrell A1 Raghuveer K. Halkar YR 2022 UL http://tech.snmjournals.org/content/early/2022/10/04/jnmt.122.264851.abstract AB A sentinel event is any unexpected event that results in death or serious physical or psychological injury to a patient unrelated to a patient's illness. Establishing and determining cause-and-effect relationships is key to preventing future sentinel/near-miss events. However, it can be challenging to establish a cause-and-effect relationship when a process involves multiple steps or people. Root cause analysis (RCA) is a technique that can pinpoint the causes of sentinel events for medical procedures involving numerous steps and people. This article provides a rationale for RCA and the basic steps in a nonmedical RCA investigation. The article then describes a more detailed, nine-step RCA approach for investigating sentinel events and illustrates the technique with a nuclear medicine example.