In the ABC sequence, what does A represent?

In the ABC sequence, what does A represent?

• A. Airway
• B. Alarm
• C. Assessment
• D. Assistance

Answer: (A)

In the ABC sequence, the first priority is to secure the airway. This matters most because if the airway is blocked or not open, air cannot reach the lungs, and no amount of breathing support or circulation support will be effective. Keeping the airway clear creates the essential path for air to enter the lungs, which must happen before you can properly assess breathing or support circulation. After the airway is open, you address breathing to ensure adequate ventilation, then circulation to support oxygen delivery to tissues. The other options describe signaling, assessing, or offering help, but they are not the immediate action taken to start the emergency response.

In the ABC sequence, the first priority is to secure the airway. This matters most because if the airway is blocked or not open, air cannot reach the lungs, and no amount of breathing support or circulation support will be effective. Keeping the airway clear creates the essential path for air to enter the lungs, which must happen before you can properly assess breathing or support circulation. After the airway is open, you address breathing to ensure adequate ventilation, then circulation to support oxygen delivery to tissues. The other options describe signaling, assessing, or offering help, but they are not the immediate action taken to start the emergency response.