Final answer:
The correct step in the scene size-up is airway assessment.
Step-by-step explanation:
The correct step in the scene size-up iS
- Airway assessment
- During the scene size-up, first responders assess the scene for safety, then go through a series of steps to evaluate the patient's condition. The airway assessment is a vital step in determining if the patient's airway is open and if intervention is necessary to maintain or restore the airway.