American Heart Association BLS (Basic Life Support) questions and answers.

When do you ensure a scene is safe? - correct answer. When you first see a potential victim. Which victim requires CPR? - correct answer. A victim who is unresponsive, not breathing and has no pulse. This is the best method to open an airway of an unresponsive victim with no suspected neck injury. - correct answer. Head tilt-chin lift The maximum time you check for a pulse. - correct answer. 10 seconds A device used for a 2-person rescue to provide breaths during CPR. - correct answer. Bag-mask device The recommended depth of chest compressions for an adult victim. - correct answer. 2 inches (5cm) When a child has a pulse of more than 60/min but is not breathing, what should you do? - correct answer. Give breaths without chest compressions. The compression-ventilation ratio for 1-rescuer adult CPR. - correct answer. 30:2 Why is important to compress to the appropriate depth during CPR? - correct answer. Creates blood flow