Which type of blast injury is primarily caused by the movement of combustible gases?

The type of blast injury that is primarily caused by the movement of combustible gases is categorized as a quaternary blast injury. Quaternary blast injuries can be attributed to other blast effects that do not fit neatly into the primary, secondary, or tertiary classifications, and they often encompass a range of additional injuries resulting from the broader explosion phenomena.

Primary blast injuries result from the high-pressure wave generated by the explosion affecting body tissues, particularly in air-filled organs like the lungs and intestines. Secondary blast injuries refer to injuries caused by shrapnel or debris propelled by the explosive force. Tertiary blast injuries occur when individuals are thrown by the blast wave against other objects, resulting in blunt force trauma.

In the context of the question regarding the movement of combustible gases, quaternary blast injuries can include thermal burns or chemical injuries caused by ignited substances in the explosion's aftermath, which aligns with injuries related to the involvement of gases.