During a drill for a mass shooting, staff at the 12 Sentara Healthcare hospitals in Virginia and North Carolina ask "victims" to change into a hospital gown to check for concealed weapons, according to an article on the U.S. News website.
To prepare to deal with a mass shooting, hospitals are focusing on several main ares, including:
• Expanding the capacity of the emergency department quickly
• Mobilizing doctors, nurses and first responders
• Devising a triage system
Depending on the number of casualties they're dealing with, officials at some hospitals may set up small tents outside their facility's entrance to evaluate patients.