A client with emphysema tells the nurse that sitting upright in bed makes breathing easier. Which instruction is most important for the nurse to provide the assigned unlicensed assistive personnel (UAP)?

Offer fruit juice at least twice during both the day and evening shifts.

Encourage the client to eat all of the meals that are sent.

Lower the bed prior to helping the client to move up in bed.

Have the client hold a pillow over the abdomen to cough and deep breathe.