患者女，38岁，子宫肌瘤切除术后，静脉PCA持续使用中。
术后镇痛的意义有（）
A.提高患者自身防止术后并发症的能力
B.控制心率，防止术后高血压，减少心肌做功和耗氧量
C.减少呼吸系统并发症
D.降低术后深静脉血栓发生率
E.减少术后患者体内儿茶酚胺和其他应激性激素的释放
F.减轻患者术后的痛苦
参考答案：A, B, C, D, E, F
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| Valentine's Day was the time my father chose to show his love for the special people in his life. Over the years I fondly (天真地) thought__1__him as my "Valentine man". My first recollection of the__2__he could bring to Valentine's Day came when I was six. That morning at the breakfast table I found a card and a giftwrapped package at my chair. The card was__3__"Love, Dad" and the gift was a ring with a small piece of red glass to__4__my birthstone,a ruby (红宝石).There is__5__difference between red glass and rubies to a child of six,and I remember__6__that ring with pride that all the cards in the world__7__not surpass (超越). __8__I grew older,the gifts gave__9__to heartshaped boxes filled with my__10__chocolate and always included a__11__card signed "Love,Dad".In those years my thankyou became__12__of a perfunctory (敷衍) response. The cards seemed less__13__,and I took for granted that the Valentine would__14__be there.I had__15__my hopes and dreams in receiving cards and gifts from "significant others" and "Love,Dad" just didn't seem quite__16__. His final card remains on my desk today. It's a__17__of how special fathers can be and how important it has been to me over the years to know that I had a father who continued a__18__of love with simple acts of understanding and an ability to express happiness over the people in his life. Those things never__19__,nor does the memory of a man who never__20__being my valentine. | ||||
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