????????
?????:
??[HCO3-]?
1.??
(1)???????????HCl??HClH+??CO2+H2OH2CO3H+HCO3-?Cl-?????????H+Cl-?HCl?HCl??????NaHCO3???H+????HCl????NaHCO3??????NaHCO3HCl???[HCO3-]?????[HCO3-]??
????Cl+K+????????????Cl-???HCO3-???K+???H+????????Na+??H+K+??
2H+??H+?????????????H+K+,?Na+?H+?H2COH3H+HCO3-??HCO3-??Na+??????????
2.
1???????NaHCO3????HCO3-????????????
2?HCO3-???
3??????500??16.8mEq,??HCO3-???30004000??
3.?
?????NaHCO3???K+??,??K+??H+?Na+HCO3-???????????????K+????K+H+?????????????????H+
4....
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1?Na+Cl-CO2-CP????CO2-CP??NaCl???Na+125 mmol/L,3%NaCl6 ml/kg?Na+5 mmol/L?Na+?CO2-CP?Cl-???2.5%~4%NaHCO3??Na+
2Na+?????Na+?20%?????
3???CO2-CP?????
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2Na+?????Na+?20%?????
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