As noted by the American Heart Association, BLS, or basic life support, test questions center on providing basic life support in an emergency situation. Areas of focus on a BLS test include CPR, rescue breathing, choking relief and using an automated external defibrillator, or AED, for adults, children and infants.
BLS works to prepare healthcare workers and nonhealthcare workers to sustain life during an emergency. CPR helps to keep the heart pumping blood throughout the body. Rescue breathing helps to get oxygen into the body when someone is unable to breathe on their own. Choking relief prevents airway blockage. Using an AED helps to regulate an abnormal heartbeat to restore proper flow throughout the body.