答:①保持病床清洁,使患者感觉舒适。②预防压疮等并发症的发生。③避免床上用物被污染,便于更换。 Y0mGrml5CIM4a9Tpc5s2uhMk5j41Sb3yhUzZcWmxjSHt+iNnGDXao/Pvei0GDvao