What is one type of acute injury that firefighters may experience?

Asphyxiation represents a critical acute injury that firefighters can encounter during their duties, particularly when operating in environments with smoke or toxic gases. Firefighters often work in scenarios with reduced oxygen levels due to combustion processes, making it possible for them to experience asphyxiation quickly if they are not using appropriate breathing apparatus. This condition can arise within moments, making it an acute response requiring immediate attention and intervention.

The other options include long-term exposure or conditions that do not present as immediate acute injuries. For example, exposure to carcinogens is a significant concern but manifests as chronic health issues over time rather than acute events. Chronic back pain is related to long-term wear and tear or repetitive strain and does not qualify as an acute injury. Similarly, overexertion chronic injury pertains to ongoing physical stress rather than immediate risk, leaning more towards cumulative trauma over time rather than a singular acute incident.