What is the rationale for immobilizing above and below a suspected limb fracture when applying a splint?

• A. To immobilize the entire body.
• B. To prevent movement of the injured segment and protect joints proximal and distal.
• C. To stop bleeding.
• D. To keep the patient comfortable.

Answer: (B)

When a limb fracture is suspected, the priority is to keep the injured part as still as possible. Immobilizing the segment above and below the fracture prevents movement of the broken bone ends and protects the joints near the injury. This stabilizes the entire injured segment, helps maintain alignment, reduces pain and swelling, and lowers the risk of further damage to nerves, blood vessels, and soft tissues during transport. It’s not about immobilizing the whole body or stopping bleeding directly, and while comfort is improved, the main purpose is to prevent movement and protect nearby joints.