某肺心病患者伴水肿,用呋塞米利尿后,其血气分析及电解质测定如下:pH7.34,PCO[img=~/QImg/2013-06-26-17-11-54/image003.gif]66mmHg,HCO[img=~/QImg/2013-06-26-17-11-54/image063.gif][img=~/QImg/2013-06-26-17-11-54/image064.gif]36mmol/L.Na[img=~/QImg/2013-06-26-17-11-54/image065.gif]140mmol/L,Cl