New York State Basic Emergency Medical Technician (EMT-B) Practice Exam

How does compressing a pressure point on an extremity help control bleeding?

1. Stops circulation

2. Aids in controlling bleeding distal to the injury

3. Reduces swelling

4. Increases blood flow to the extremity

The correct answer is: Aids in controlling bleeding distal to the injury

Compressing a pressure point on an extremity is effective in controlling bleeding distal to the injury because it helps to constrict or compress the blood vessels, which reduces blood flow to the area beyond the point of injury. This technique is particularly valuable in situations where direct pressure on the wound is not sufficient. By applying pressure at a point along the limb, typically over major arteries that supply blood to that part of the extremity, the flow of blood can be diminished. This approach is useful for managing external hemorrhage when there is an open wound. The reduction of blood flow past the point of compression helps to minimize the amount of blood loss and gives the body and the emergency medical responders the opportunity to address the injury more effectively. This strategy is part of a broader set of skills used to manage trauma and control bleeding in emergency situations.