Final answer:
When splinting an injury of the wrist, the hand should be placed in a straight position to immobilize the wrist and prevent further injury.
Step-by-step explanation:
When splinting an injury of the wrist, the hand should be placed in a straight position. This helps to immobilize the wrist and prevent further injury. Placing the hand in a functional position, such as making a fist, may cause unnecessary movement and can aggravate the injury.