???????

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1.???
2??
1??
2?
3??
3???????????????????????
????,????.

???????,:a.?,W??,???,?,???,?????;b.?,?,,?,??,?,??????;c.???,???,?,???,????. : (1),???,??10%?30~40ml/d?g??13.4mmol.????,??1g?4.5mmol. (2),??,???????....

??130???????????????????????N???SIADH??????????????????????
????????????????????????????????????????????????????????
???????23?????120????3??????????SIADH??????
???120mmol/L??130mmol/L??135mmol/L
???35mmolL?????????????????????????????NaCa?????????????????30ml????
?
1.????????? 2.??????^ 3.????? 4...

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?????????????? ????????? ??;?;????;;? ;?;??;???;?;??;;;????;???o

?????:

??[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+??...

,??????????3200?-4170mmol,???0.15%?????44%-50%??40%-47%????9%-10%
?
??????1?44%??9%??47%?????75%?????90%????????????????90%????
????????????????????????????????????????????????????????????????????????????????????????????????????????????????
?????????^???????
??????????????025%???????????????????????...