Approximately what percentage of emergency service workers experience Critical Incident Stress at least once in their careers?

• A. 50%
• B. 65%
• C. 87%
• D. 100%

Answer: (C)

Critical Incident Stress is the normal emotional and physical reaction that can follow exposure to traumatic events. In emergency services, facing life-threatening scenes, death, and severe injuries happens frequently, so CIS is very common. Studies of emergency responders consistently show that a large majority experience CIS at least once in their careers, with about 87% reporting such experiences. This makes the 87% estimate the best choice among the options because it reflects the high prevalence found in research. A lower figure like 50% or 65% would underestimate how often responders are affected, while 100% would imply everyone experiences CIS, which isn’t supported by data. Recognizing how common CIS is helps emphasize the importance of after-action debriefings, peer support, and access to mental health resources to promote resilience and reduce the risk of longer-term effects.