Which of the following is a first aid technique for a suspected broken bone?

Stabilizing the area and avoiding movement is crucial when dealing with a suspected broken bone. This technique helps to prevent further injury to the bone or surrounding tissues and can significantly reduce pain for the person affected. Limiting movement can also protect any nerves or blood vessels that may be compromised by the fracture.

Injured bones can shift or cause additional damage if moved unnecessarily, leading to complications such as increased pain or exacerbated injury. By stabilizing the area—typically with a splint or by immobilizing it in a natural position—the first aider minimizes the risk of further injury and prepares the individual for safe transportation to medical care.

Other choices suggest actions that could worsen the problem. For example, testing movement could cause more pain or injury, while applying ice directly to the skin can result in frostbite or skin damage. Encouraging walking can lead to severe complications and increased risk of further injury. Therefore, stabilization and immobilization are vital first aid principles in managing suspected fractures.