Which description best defines a rigid splint?

• A. Solid device immobilizing limb
• B. Flexible splint such as pillow
• C. Moldable splint using suction
• D. Complete separation of limb

Answer: (A)

Rigid immobilization of a limb defines a rigid splint. It is a solid, inflexible object placed to keep the injured part from moving, often spanning the joint above and below the injury to maintain alignment and protect soft tissues. This kind of device minimizes further injury, reduces pain, and facilitates safe transport. In contrast, soft or flexible supports like pillows merely cushion or support without preventing movement, and moldable suction splints can become rigid only after forming, but they are not inherently described as rigid in the same sense. A completely separated limb is not a splint at all and cannot serve the purpose of immobilization.