Southwest Regional Mine Rescue Field Exam Taken from the 2019 Southwest Regional Mine Rescue Contest held in Ruidoso, New Mexico Progress Indicator: Question 2 of 30 2.  Body substance isolation precautions are specific steps to: Choices: Separate patients in triage to prevent exposure to air borne pathogens Help minimize exposure to a patient’s body fluid and attitude Help minimize exposure to a patient’s blood and body fluids Insure the patient is protected from coffee ground emesis