Which type of blast injury involves projectiles from the explosion?

The type of blast injury that involves projectiles from the explosion is secondary blast injury. In this context, secondary injuries occur when the explosion generates shrapnel or debris that is propelled through the air, striking individuals nearby. Such projectiles can include fragments of the explosive device itself, as well as materials from the surrounding environment that are dislodged by the force of the blast.

Understanding the different types of blast injuries is crucial in managing trauma from explosions. Primary blast injuries result from the initial pressure wave of the explosion, affecting air-filled organs and causing injuries such as ruptured eardrums or lung damage. Tertiary blast injuries are due to victims being thrown by the blast wave and suffering impacts against other objects or the ground. Quaternary injuries encompass a broader range of injuries, including those caused by fires, toxic exposures, or pre-existing medical conditions triggered by the blast.

Recognizing secondary injuries is vital for effective treatment and triage following an explosion, as these can lead to penetrating trauma and significant damage requiring surgical intervention.