A car has been hit head-on by another vehicle at a moderate rate of speed. seat belts were in place and the air bags deployed. the patient is complaining of chest pain. quick observation reveals a bruise to his sternum. the emt would immediately:

The EMT's observation could mean that the airbags deployment caused the bruising due to the force of the bag against the body. There could be broken or bruised ribs, or even damage to organs. Xrays at the hospital would be the quickest and surest way to determine if there was any injury.