Western Governors University (WGU) D446 Adult Health II Practice Exam

Prioritize airway first because nothing else can help if air can’t reach the lungs. An open airway allows rescue breaths to actually enter the lungs and begin oxygenating the blood. If the airway is blocked or collapsed, ventilation won’t occur and oxygen delivery to tissues stops, even if you’re delivering breaths or performing compressions. Once the airway is clear, focus on breathing to ensure ventilation is happening effectively. Providing breaths helps move oxygen into the lungs and into the bloodstream, supporting oxygen delivery to the brain and other vital organs. If the person isn’t breathing adequately on their own, give rescue breaths to establish ventilation. Only after establishing an open airway and ensuring ventilation should you address circulation. Chest compressions move oxygenated blood to the heart and brain, sustaining perfusion while you continue airway and breathing support. If there’s no detectable pulse, start compressions to maintain circulation as you continue airway management and breathing. This sequence minimizes time where the brain and heart are not getting oxygen, making it the most effective order for basic life support.