The first priority when giving first aid for an open fracture is to _________.

In the case of an open fracture, the first priority is to control the bleeding. This is critical because an open fracture typically exposes bone and tissue, which can lead to significant blood loss. If bleeding is not effectively managed, it can result in shock and other serious complications, potentially endangering the patient's life.

Controlling the bleeding involves applying direct pressure to the wound and, if necessary, using techniques such as elevation or tourniquets to minimize further blood loss. Once the bleeding is under control, attention can be directed toward immobilizing the fracture, administering pain relief, and providing comfort to the patient, but these actions come after ensuring that any immediate threats to the patient's life, such as uncontrolled bleeding, are addressed first.