- Janet M Rennie
By knowing any two values of an acid–base measurement, the other values can be derived by connecting the two known points on this nomogram. For newborn babies, the haemoglobin can be assumed to be 15 g/100 ml. Reproduced from Siggaard-Andersen, O., 1963. Blood acid-base alignment nomogram. Scandinavian Journal of Clinical and Laboratory Investigation 15, 211–217.