EMTprep Free Training Materials

Our Free Training Materials include articles, test day tips, study guides and training videos as well as words of advice for both your NREMT journey and EMS career.


Training Categorized: Bleeding

Active shooter incidents (which often devolve into mass casualty incidents) are becoming a concern across the United States, with recent statistics showing that “in 2017, there were 29 active shooter events in the United States” (1). Thus we, as EMS professionals, must be educated in our role and response to an active shooter and/or mass casualty incident situation. 

What classifies an active shooter (AS) or mass casualty incident (MCI) scenario?

The U.S. Department of Homeland Security defines an AS as “an individual actively engaged in killing or attempting to kill people in a confined and populated area; in most cases, active shooters use...

          Managing gunshot wounds requires a working knowledge of several mechanisms. Understanding the anatomy and physiology of the body is imperative; the severity of the damage and impacted body structures must be quickly assessed. This assessment also requires knowledge of bullet mechanics as it travels through the human body. Gunshot wounds present different problems for prehospital providers depending on how many bullets made an impact, what part of the body the bullet traveled through, and what type of bullet the firearm ejected.

          A bullet from a gun has a certain amount of kinetic energy. Kinetic energy is (0.5)(m)(v2), where m is...