问题
单项选择题
Which of the following interventions would be most helpful in preventing pressure ulcer formation in at-risk client
A．Massaging reddened areas on the sacrum.
B．Ensuring a generous fluid intake.
C．Repositioning every hour.
D．Providing a low protein diet.
答案
参考答案：C
解析：Because pressure ulcers (decubitus ulcers) are caused by pressure to the tissues, the most important measure in preventing them is to relieve the pressure by repositioning the client every 1 to 2 hours.