资源描述：
《血气分析参数》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、12附录计算值计算值尽可能和有意识地按NCCLS标准。AVLCompact3中有以下计算值。Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录方程式碳酸氢根浓度血浆中碳酸氢根浓度CHCO3-=PCO2[mmol/l]Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录10pH-7.608血中CO2总量血浆中CO2浓度是溶解的CO2与碳酸氢盐之和CtCO2=CHCO3+0.0307PCO2[mmol/l]血液中碱液BEactBEact
2、=(1-0.014cHb)[cHCO3-24.26+(1.63cHb+9.5)(pH-7.4)]-0.2cHb(1-SO2)[mmol/l]剩余碱BE=(1-0.014[mmol/l]Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录cHb)[cHCO3-24.8+(1.43cHb+7.7)(pH-7.4)]细胞外液碱BEecfBEecf=cHCO3-24.8+16.2(pH-7.4)[mmol/l]Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9
3、512－1212附录缓冲碱BB=BE+41.7+0.42cHb[mmol/l]标准pH-值pHst=pH+(0.8262-0.01296cHb+0.006942BE)*lg(0.025PCO2)[pH-unit]标准碳酸氢根cHCO3-st=[mmol/l]氧饱和度(有效的)SO2=cO2Hb/(cO2Hb+cHHb)NoCOOX-datapresent:O2sat=Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录withlgQ=2.9lgPO2k+F1-F3lgPO2k=lgPO2+0.48(pH-F4)
4、-lg(P50/F5)+0.0013BEadult:F1=1.661F2=0.074F3=4.172F4=7.4F5=26.7fetal:F1=1.3632F2=0.0533F3=4.113F4=7.2F5=25.0Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录氧含量(动脉)COOX-datapresent:O2cont=O2ct(Oxi)+0.00314PO2[ml/dL]NoCOOX-datapresent:O2cont=1.39cHbO2sat+0.003PO2[ml/dL]SO2=f(PO2,pH
5、,P50,a/f,BE)肺胞氧分压AaDO2t=PAO2t-PaO2tPAO2t=(Baro-pH2Ot)FIO2-PACO2t[FIO2+(1-FIO2)/RQ]forpAO2³PO2,otherwisepAO2=PO2pH2Ot=47*10exp[(t-37)(0.0237-0.0001(t-37))]PACO2t=PaCO2t[mmHg]氢离子浓度Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录cH+=10(9-pH)[nmol/l]Operator'sManual,AVLCompact2,Versi
6、on2,Rev.2.0,February9512－1212附录标准离子钙nCapH=7.4=Ca*10exp[F5(pH-7.4)]0.22血AVLCompact3仅计算血参数F5=0.24血清/血浆[mmol/l]病人体温的PO2PO2t=PO210exp[(t-37)(5.49*10exp(-11)*PO2exp(3.88)+0.071)/(9.72*10exp(-9)*PO2exp(3.88)+2.3)[mmHg]病人体温的PCO2Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录PCO2t=PCO2[
7、mmHg]病人体温的pHpHt=pH-(t-37)(0.0147+0.0065(pH-7.4))[pH-unit]Operator'sManual,AVLCompact2,Version2,Rev.2.0,February9512－1212附录下列方程式的测量值和输入值单位:pHpH-unitP50mmHgPCO2mmHga/f-PO2mmHgRQ-tHbg/dlFIO2-单位的转换O2cont1vol%=0,4464mmol/lt
