Cpr, BLS CPR Exam 96 Questions and Answers In which locations do most out-of-hospital cardiac arrests occur? - Homes Which is the most common cause of cardiac arrest in children? - Respiratory failure or shock What is the third link in the adult out-of-hospital Chain of Survival? - Rapid defibrillation Which statement best describes sudden cardiac arrest? - When an abnormal rhythm develops and the heart stops beating unexpectedly. You watch a 53 year-old man collapse and become unresponsive. What is the first action you should take in this situation? - Verify that the scene is safe for you and your victim. The man doesn't respond when you touch him and shout, "Are you okay?" what is your best next action? - Shout for nearby help. Several rescuers respond, you ask them to activate the emergency response system and retrieve the AED and emergency equipment. As you check for a pulse and breathing, you notice that the man is gasping for air and making snorting sounds. You do not feel a pulse, what is your next best action? - Start cpr beginning with chest compressions Adult cpr: Ratio of compressions to breaths - 30 compression's to 2 breaths What is the rate and depth for compression's on an adult? - 100-120 per minute and a depth of 2 inches. What action should you take when more rescuers arrive? - Assign tasks to other rescuers and rotate compression's every 2 minutes or more frequently if needed to avoid fatigue. If you suspect that an unresponsive victim has head or neck trauma, what is the preferred method for opening the air way? - Jaw-Thrust What is the most appropriate first step to take as soon as the AED arrives? - Power on the AED Which step is one of the universal steps for operating and AED? - Place pads on victims bare chest