Which of the following beds is useful for preventing bed sores for a bed-ridden patient?

QkMLh7lSnWO557MajxKnKD
E6 Nursing Brunner Adult Health 3SA Vol 2 Part 2 p. 111-113
E6 Nursing Fundamentals Taylor p. 328-330
Practise the full IGNOU Post B. SC. Nursing entrance -2021
Attempt every question from this paper in a timed mock, then review the full solution for each one.