Final answer:
The first action to take after calling 911 when a 10-year-old female collapses on the floor after choking on a grape would be to C) Give 30 chest compressions.
Step-by-step explanation:
Choking is a life-threatening emergency that occurs when the airway is partially or completely blocked, restricting airflow. Common causes include swallowing large pieces of food or foreign objects. The Heimlich maneuver, abdominal thrusts, or back blows are techniques used to clear the airway. Immediate action is essential to prevent suffocation and injury.
When someone is choking and unconscious, chest compressions can help dislodge the obstructing object. It is important to push hard and fast on the center of the chest, with a rate of at least 100 compressions per minute. This can help create enough pressure to move the object and restore the flow of air.