Final answer:
To splint a hand fracture, the hand should be placed in the position of function, with the wrist slightly extended, fingers naturally curved, and thumb relaxed.
Step-by-step explanation:
When splinting a hand fracture, the hand should be placed in the position of function. This position entails having the wrist slightly extended, the fingers naturally curved (as if holding a can), and the thumb in a relaxed position slightly away from the hand for comfort and to reduce swelling.
This alignment facilitates proper healing and helps maintain functionality of the hand after recovery. It is particularly crucial when dealing with fractures like a Colles fracture, a common injury caused by falling onto an outstretched hand, which often results in a characteristic deformity if not properly treated.