Transcription of PCO2 AND CALCULATED VALUES FOR HCO3, TCO2, BASE …
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PCO2 AND CALCULATED VALUES FOR HCO3, TCO2, BASE …
pco2 AND CALCULATED VALUES FOR hco3 , tco2 , BASE EXCESS AND ANION GAPArt: 714182-00 FRev. Date: 08/27/03 pco2 is measured by direct potentiometry. In the calculation of results for pco2 , concen tration is re lat ed to potential through the Nernst equation. Results are measured at 37 C when using car tridg es that require thermal control and corrected to 37 C when using cartridges that do not require thermal ValuesWhen a cartridge includes sensors for both pH and pco2 , bicarbonate ( hco3 ), total carbon di ox ide ( tco2 ) and base excess (BE) are hco3 = pH + log pco2 = hco3 + pco2 BEecf= hco3 + (pH )BEb = (1 - *Hb) * [ hco3 - + ( * Hb + ) * (pH - ) ]When a cartridge includes sensors for sodium, potassium, chloride, pH and pco2 , anion gap can be Gap = (Na + K) (Cl + hco3 )See below for information on factors affecting results.
PCO2 AND CALCULATED VALUES FOR HCO3, TCO2, BASE EXCESS AND ANION GAP Art: 714182-00F Rev. Date: 08/27/03 PCO2 is measured by direct potentiometry. In the calculation of results for PCO2, concentration is re lat ed to potential through the Nernst equation.
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