What type of injury results directly from the explosive blast wave?

Injuries resulting from an explosive blast wave are classified as primary blast injuries. These injuries are caused by the sudden increase in pressure generated by the explosion, which exerts a force on the body and its internal structures. The primary blast wave can cause significant damage to air-filled organs like the lungs, ears, and gastrointestinal tract due to the rapid change in pressure.

Understanding primary blast injuries is crucial for tactical paramedics, as they need to recognize the signs and symptoms associated with such injuries and be prepared to manage them appropriately. Primary blast injuries differ from secondary injuries, which occur from projectiles or debris, tertiary injuries that result from individuals being thrown by the blast, and quaternary injuries that encompass additional injuries caused by heat, chemicals, or other blast-related effects.