What is the most common cause of incident fatalities?

Cardiac arrest is recognized as the most common cause of incident fatalities in many emergency scenarios, particularly in fire-related incidents. The stress and physical exertion associated with firefighting and rescue operations can place significant cardiovascular strain on personnel. Additionally, individuals who may be trapped or in high-stress situations can experience cardiac events due to anxiety, smoke inhalation, or pre-existing health conditions.

While trauma, burns, and asphyxiation can also result in fatalities during incidents, cardiac arrest often occurs more frequently and can be attributed to the physiological stresses experienced by both victims in emergencies and responders. Therefore, understanding the prevalence of cardiac arrest is crucial for preparation and response strategies, including promoting wellness and physical fitness among firefighters and establishing effective medical response protocols.