First Aid Exam Taken from the 2018 National Mine Rescue Contest held in Lexington, Kentucky Progress Indicator: Question 1 of 30 1.  One way emergency medical responders can minimize the risk of acquiring an infectious disease is to: Choices: Hold their breath while treating patients suspected of communicable disease Become immunized from pathogens typically found in EMS Work closely with other, more experienced responders and practice your skills Get a measles vaccine