血气分析参数【推荐】

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1、AVLCompact3中有以下计算值。CalculatedvaluestermNCCLStermCompactNCCLSconform.RemarkBicarbonateHCOjHC03yesaccordingtoNCCLSformula(8)TotalCO2inplasmactCOiTCO2yesaccordingtoNCCLSformula(7)Baseexcess(blood)BEBEyesaccordingtoNCCLSformula(15)Baseexcess(blood)withSOjcorrectionBEgnoi

2、nNCCLSnotspecialdefined,butisinaccordancetoNCCLSofsaturatedSO?*100%Baseexcesstextra-cellularBE*fBEecfyesaccordingtoNCCLSformula(14)Bufferbase—BB一inNCCLSnotdefinedStandardpHvalue—st>pH—inNCCLSnotdefinedStandardBicarbonatehco3kst.HCO3nodefinedinNCCLSsection5.10.however

3、noformula^Oxygensaturationso2O2satpartlyNCCLSconforming,onlywithdatalinktooximeterOxygencontentctOiO2contyesinNCCLSnotspecialdefined,butisinaccordancetothecorrespondingcalculationstepsforShuntAlveolararterialoxygenpartialpressuredifferencePAOrPaO2AaD6yesaccordingtoNC

4、CLSformula(16)and(17)Hydrogenionconcentration—cH+—inNCCLSnotdefinedStandardizedionizedCalcium一nCa»u・"—inNCCLSnotdefinedPO2atpatienttemperaturePO2TyessignificantothervaluesthanbeforePCO2atpatienttemperaturePCO,PCO2TyesaccordingtoNCCLSformula(24)pHatpatienttemperatureP

5、H1pHtyesaccordingtoNCCLSformula(23)relativeShuntvolumeQsQtShuntpartlyaccordingtoNCCLSformula(19)ifPaO2>150mmHg方程式碳酸氢根浓血浆中碳酸氢根浓度CHCO3'=PCO2[mmol/l]10pH-7.608血中CO2总血浆中CO2浓度是溶解的CO2与碳酸氢里盐之和CtC02=CHC03+0.0307PCO2[mmol/1]血液中碱液BEactBEact=(1-0.014[mmol/cHb)[cHCO3・24.26+(1.63

6、cHb+1]9.5)(pH-7.4)]-0.2cHb(l-SO2)剩余碱BE=(1-0.014[mmol/cHb)[cHCO3-24.8+(1.43cHb+7.7；l](pH-7.4)][mmol/1]细胞外液碱BEecfBEecf=cHCO3-24.8+16.2(pH-7.4)缓冲碱BB二BE+41.7+0.42cHb[mmol/1]标准pH■值[pH-unit]pHst=pH+(0.8262-0.01296cHb+0.006942BE)*lg(0・025PCO2)标准碳酸氢根[mmol/1]CHCO3st=10叽一6.022

7、）氧饱和度（有效的）SO2=cO2Hb/(cO2Hb+cHHb)NoCOOX-datapresent:°2sat=withlgQ=2.9lgPO2k+FlioF2p堪-F3lgP02k=lgPO2+0.48(pH-F4)-lg(P50/F5)+0.0013BEadult:Fl=1.661F2=0.074F3=4.172F4=7・4F5=26.7fetal:Fl=1.3632F2=0.0533F3=4.113F4=7.2F5=25.0氧含量(动脉)COOX-datapresent:O2cont=O2ct(Oxi)+0.00314P

8、O2[ml/dL]NoCOOX-datapresent:O2cont=1.39cHbO2sat+0.003[ml/dL]PO2SO2二f(P02,pH,P50,a/f,BE)肺胞氧分压AaDO2t=PAO2t-PaO2t[mmHg]PAO2t=(Baro-pH2