?????T

??????????????,???R?????,??????????,F,?(?),??????????
???????????????????????????????????????????????????????????????


e????????????????????C?????????????e???

??????

TcyanosisT??????deoxyhemoglobin ?????reduced Hb ???????????????????????????????????????????????


? ??????????????????5 % ???30 % ???????????1g???Hb?1 . 34ml?????????50g/L ( 5g/dl ??????R??????????150g/L?50g / L ?????1 / 3 ???????SaO266 ????PaO2?34mmHg ????Hb ???SaO2< 85 ?????????SaO2???SaO285 ...

????????????????
????~

???????????
?????5%??T???

??????>50/L??
??????120g/L,??110g/L,100g/L
???...
????Hb100g/L,..??????>50/L??T

???R

??????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????R
 ???????????????????50???Rj???????????????R
     ???c????????????????????????????????50?

??????????????
????????????????R

?

R?????????????????
??