a. Immobilize the Fracture.

Tape a pillow, folded blanket, field jacket, or poncho in place over the fractures to act as a splint. Have the casualty lie on his injured side. The ground acts like a splint to help restrict movement. This position also helps to reduce pain.

CAUTION: Do not wrap the casualty’s chest with tape since the pressure could interfere with the casualty’s respirations.

b. Monitor and Evacuate Casualty.

Monitor the casualty’s breathing. If the casualty has difficulty breathing, establish and maintain an open airway. Assist with the casualty’s respirations (mouth-to-mouth resuscitation), if needed. Administer oxygen if it is available. Observe the casualty for signs and symptoms of tension pneumothorax and hemothorax. Evacuate the casualty as soon as possible.