【单选题】
导致红细胞及血红蛋白下降的原因不包括下列哪种情况?
【单选题】
患者血红蛋白60g/L,红细胞 3.1*10 12/L,MCV 67fl,MCH 30%,属于何种类型贫血
【单选题】
体位性低血压是指由卧位变为直立体位的3min内,收缩压下降()mmHg或舒张压下降()mmHg
【单选题】
患者女性,30岁。诊断特发性血小板减少性紫癜。血常规显示红细胞3.5×1012/L,血红蛋白90g/L,白细胞6.8×109/L,血小板30×109/L,该患者最大的危险是
【单选题】
OH被定义为在站立3分钟以内收缩压下降
【单选题】
预混胰岛素30R(30/70)的组成为
【单选题】
C30表示混凝土的()等于30MPa。
【单选题】
A点坐标为(10、20、30),B点坐标为(30、20、30)则AB距离为______。
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铅垂线
【单选题】
血液病患者血红蛋白低于多少需要输注红细胞