第6题: [单项选择]A client is at risk for developing a pressure ulcer. The first warning of an impending pressure ulcer is when pressure applied to skin it turns A. whitish. B. yellowish. C. bluish. D. reddish. 参考答案:D 答案解析:When pressure is applied to the skin, the area first becomes blanched, or whitish. When pressure is
第9题: [单项选择]患者男性,38岁,既往体健。2天前因“高处坠落伤”住院,为预防应激性溃疡,对患者进行抑酸治疗,监测胃液pH应达到 A. <4.0 B. <3.0 C. <2.0 D. >4.0 E.>3.0 参考答案:D 答案解析:[解析] 在严重创伤、感染等应激状态下可引起胃酸分泌增加,易出现以胃黏膜糜烂、溃疡和出血为特征的急性胃黏膜病变,因此对危重病患者进行胃液pH监测具有重要意义。目前认为维持胃液pH在4.0以上对预防应激