Which of the following is a true statement regarding bone and joint injuries?

The statement "When in doubt, splint" highlights a critical principle in wilderness first aid regarding bone and joint injuries. Splinting helps to immobilize the injury, minimizing movement and preventing further damage to the bones, joints, and surrounding tissues. This is particularly important when the extents of the injury are uncertain. If you suspect a fracture or dislocation, applying a splint can provide stability and reduce pain. It is better to err on the side of caution with splinting, as early and proper immobilization can significantly aid in the recovery process and decrease complications.

The approach underscores the fundamental idea that if you are unsure about the severity of an injury, splinting serves as a protective measure that allows for safe transport and care until further treatment can be given.