A simple method for computing acid-base state.

Blackburn, J P; Preston, T D; Strickland, D A

Blackburn, J P; Preston, T D; Strickland, D A.

Br J Anaesth ; 47(4): 500-4, 1975 Apr.

Article en En | MEDLINE | ID: mdl-237520

RESUMEN

Simple methods are described for computing the variables derived from the Siggaard-Andersen nomogram, where the in vitro buffer line is either established by direct measurement or calculated from measurements of pH, Pco2 and haemoglobin. Calculations are performed using the equation of the pH-log Pco2 buffer line, the Henderson-Hasselbalch equation, and the polynomials: BE=-38.402+1.8970 (SB)-0.013342 (SB)-2 m-equiv/litre; SL=-69.046+17.377 (pH40)-1.1121 (pH40)-2; SH=-123.30+31.357 (pH40)-2.0143 (pH40)-2. Then haemoglobin=7.5 (1+(S-SL)/(SH-SL)) G/100 ml, where S is the slope of the buffer line. Results are sufficiently accurate for clinical purposes.

Asunto(s)

Equilibrio Ácido-Base; Matemática; Dióxido de Carbono/sangre; Hemoglobinas; Concentración de Iones de Hidrógeno; Modelos Biológicos; Presión Parcial

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Equilibrio Ácido-Base / Matemática Tipo de estudio: Prognostic_studies Idioma: En Revista: Br J Anaesth Año: 1975 Tipo del documento: Article Pais de publicación: Reino Unido

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