A nurse is teaching a client about self-management of their halo fixator device. Which of the following information should the nurse include in the teaching?

Rationale: A. Give each screw a quarter turn daily using the wrench provided: Clients should never adjust or tighten the halo device screws themselves. Only trained medical professionals should handle adjustments to avoid misalignment or injury to the cervical spine. B. Apply powder liberally under the chest portion of the halo fixator device: Powder can cake and irritate the skin or lead to moisture buildup, increasing the risk of skin breakdown or infection. The skin under the vest should be kept clean and dry, not powdered. C. Avoid the use of straws when drinking liquids: Clients can safely use straws to drink fluids while wearing a halo device. There is no contraindication for using a straw, and it may actually make drinking easier. D. Place a small pillow under the head while lying supine: Using a small pillow supports neck alignment and promotes comfort without compromising the stability of the halo device. This is an appropriate and recommended practice during rest.