(sig'ard an'dĕr-sĕn), a nomogram used to predict acid-base composition of blood by the slope and position of a buffer line constructed when PCO2 on a logarithmic scale is plotted against pH.
Siggaard-Andersen,
Ole, Danish clinical biochemist, 1932–. Siggaard-Andersen nomogram - used to predict acid-base composition of blood.