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[单选题]
A.血pH B.PaCO2 C.BB D.SB E.AG
A.血pH
B.PaCO2
C.BB
D.SB
E.AG
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A.血pH
B.PaCO2
C.BB
D.SB
E.AG
A.HCO3于PaCO2呈反向变化时应诊断为复合性酸碱失衡;B根据pH确定有无酸血症或碱血症;
B.PH变化方向总与原发分量相一致;
C.代谢性酸中毒时肺代偿的最大限度是PaCO2不低于3.33KPa(25mmHg);
D.代偿方式主要为肾代偿和肺代偿肾两种,特点是肾快肺慢