【单选题】【消耗次数:1】
血红蛋白的氧容量主要取决于
Pco2
2,3-DPG的浓度
pH
Po2
Hb浓度
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相关题目
【单选题】 血红蛋白的氧容量主要取决于
①  Pco2
②  2,3-DPG的浓度
③  pH
④  Po2
⑤  Hb浓度
【单选题】 血红蛋白的氧含量主要取决于
①  Pco2
②  2,3-DPG的浓度
③  pH
④  Po2
⑤  Hb浓度
【单选题】 下列关于血红蛋白(Hb)与O<sub>2</sub> 结合特征的叙述,正确的是()
①  Hb与O<sub>2</sub> 的结合是可逆的氧化作用
②  血液[H<sup>+</sup> ]升高时,Hb与O<sub>2</sub> 的亲和力增强
③  氧离曲线右移,表示Hb与O<sub>2</sub> 的亲和力增强
④  CO与Hb的亲和力是O<sub>2</sub> 的210倍
⑤  Hb浓度低下时,氧合血红蛋白减少,血液呈紫蓝色
【单选题】 患者女性,34岁。因肺炎住院治疗,给予鼻导管吸氧(3L/min)。动脉血气分析pH7.46,PCO2 30 mmHg,PO2 66 mmHg,SaO2 95%。该患者的氧合指数为
①  200
②  300
③  320
④  240
⑤  280
【判断题】 紫绀一般是由于氧合血红蛋白减少,去氧血红蛋白增加造成。
①  正确
②  错误
【判断题】 缺铁性贫血是由于缺乏合成血红蛋白的铁及蛋白质,使血液中血红蛋白的浓度低于正常值所致。
①  正确
②  错误
【单选题】 女性,42岁,因“急性重症胰腺炎”入院。2天来经保守治疗,发热及腹痛略好转,但逐渐出现呼吸困难,予面罩吸氧(氧流量6L/min)后血气分析显示:pH7.52,PCO2 24 mmHg,PO2 63 mmHg,针对该患者呼吸困难的原因,应首选的治疗措施是
①  加强抗厌氧菌治疗
②  皮下注射低分子肝素
③  静脉推注糖皮质激素
④  无创通气
⑤  控制入量,防治心衰发生
【单选题】 血浆pH值主要取决于()
①  KHCO<sub>3</sub> /H<sub>2</sub> CO<sub>3</sub> 缓冲对
②  K<sub>2</sub> HPO<sub>3</sub> /KH<sub>2</sub> PO<sub>3</sub> 缓冲对
③  NaHCO<sub>3</sub> /H<sub>2</sub> CO<sub>3</sub> 缓冲对
④  血红蛋白钾/血红蛋白
⑤  蛋白质钠盐/蛋白质
【单选题】 属于血红蛋白直接分解产物的物质是
①  血栓素
②  细胞色素C
③  胆红素
④  血红素
⑤  胆素原
【单选题】 男,67岁,反复咳嗽咳痰,喘息15年,加重7天。查体:桶状胸,双肺布满哮鸣音,血气分析PCO2 68mmHg,PO2 56mmHg,,该患者最可能的肺功能结果
①  VC正常,FEV1%正常,RV/TLC小于40%
②  VC降低,FEV1%正常,RV/TLC小于40%
③  VC降低,FEV1%增加,RV/TLC大于40%
④  VC正常,FEV1%降低,RV/TLC小于40%
⑤  VC降低,FEV1%降低,RV/TLC大于40%
随机题目
【单选题】 The boy has admitted to ____ the window while playing football yesterday.
①  breaking
②  having been broken
③  break
④  be breaking
【单选题】 We expect Mr. White will ____ Class One when MissJane retires.
①  take over
②  take up
③  take off
④  take to
【单选题】 My pain ____ apparent the moment I walked into the room, for the first man I met asked sympathetically: “Are you feeling all right?”
①  must be
②  must have been
③  had been
④  had to be
【单选题】 ____ there is little we can do to modify the weather, we can at least know what kind of weather to expect.
①  Since
②  When
③  While
④  Unless
【单选题】 None of us can work out the puzzle, _____ we?
①  can
②  can’ t
③  do
④  don’ t
【单选题】 Little Tom is an orphan(孤儿). _____, he has to make a living by himself.
①  A child as he is
②  Child as he is
③  Child as is he A child though he is
【单选题】 While driving along the treacherous road, ____.
①  my right rear tyre blew out
②  my right rear tyre had a blowout
③  I had a blowout on my right rear tyre
④  I had my right rear tyre blowout
【单选题】 She has breakfast at seven everyday, _____?
①  has she
②  hasn’ t she
③  does she
④  doesn’ t she
【单选题】 ----Amy, I called you yesterday evening, but nobody answered the phone.----Oh, I _______ a walk with my mother at that time.
①  take
②  took
③  am taking
④  was taking
【单选题】 Confuciuswasafamousphilosopher ______ hasinfluencedtheworldgreatly.
①  whose
②  whom
③  which
④  who