henderson_hasselbalch: pH by Henderson Hasselbalch equation

In physiology: Calculate physiologic characteristics of awake and anesthetized adults, children and infants

Description

Calculate the pH based on bicarbonate and partial pressure of CO2

Usage

henderson_hasselbalch(bicarbonate, pp_co2)

Arguments

bicarbonate	mmol/L
pp_co2	partial pressure of carbon dioxide in mmHg

Examples

 bicarbonate <- seq(10, 50, 5)
 pp_co2 <- seq(20, 70, 10)
 bc <- rep(bicarbonate, length(pp_co2))
 pp <- rep(pp_co2, each = length(bicarbonate))
 acidbase <- matrix(henderson_hasselbalch(bc, pp), nrow = 9, ncol = 6)
 rownames(acidbase) <- paste("bicarb", bicarbonate)
 colnames(acidbase) <- paste("PaCO2", pp_co2)
 acidbase

Example output

          PaCO2 20 PaCO2 30 PaCO2 40 PaCO2 50 PaCO2 60 PaCO2 70
bicarb 10 7.311832 7.135740 7.010802 6.913892 6.834710 6.767764
bicarb 15 7.487923 7.311832 7.186893 7.089983 7.010802 6.943855
bicarb 20 7.612862 7.436770 7.311832 7.214922 7.135740 7.068794
bicarb 25 7.709772 7.533680 7.408742 7.311832 7.232650 7.165704
bicarb 30 7.788953 7.612862 7.487923 7.391013 7.311832 7.244885
bicarb 35 7.855900 7.679808 7.554870 7.457960 7.378778 7.311832
bicarb 40 7.913892 7.737800 7.612862 7.515952 7.436770 7.369824
bicarb 45 7.965044 7.788953 7.664014 7.567104 7.487923 7.420976
bicarb 50 8.010802 7.834710 7.709772 7.612862 7.533680 7.466734

physiology documentation built on May 2, 2019, 8:58 a.m.