To maintain correct body alignment for an immobile patient in bed, the nurse should:

Maintaining proper body alignment for an immobile patient in bed is essential for preventing complications such as pressure ulcers, maintaining comfort, and promoting optimal physiological function. Using a footboard or high top sneakers for dorsiflexion is particularly effective in this regard. Dorsiflexion helps to keep the feet in a neutral position, which aligns the whole body properly and can prevent foot drop and other complications associated with immobility.

Footboards provide a physical barrier that assists in maintaining the proper position of the feet, preventing them from slumping or developing contractures. High top sneakers can also be utilized as they provide support and maintain the feet in an appropriate position. By ensuring that the feet are correctly aligned, the patient's overall posture is improved, which is crucial for their comfort and well-being.

The other options, though they may contribute to alignment in specific aspects, do not address the overall body alignment as comprehensively as using a footboard or high top sneakers. For example, placing a large pillow behind the head and neck may lead to misalignment of the spine, and trochanter rolls are primarily used for positioning the legs, but they don’t address the feet and overall body alignment. Raising the head and knees for flexion can also create