Table 4:

Different types of haemolysis

In vitro-haemolysis parallel increase of haemoglobin (red coloration of plasma/serum), potassium, LD and AST respectively, but haptoglobin and reticulocyte-index remains normal, unforeseen increase in potassium, but no red coloration of plasma/serum, LD in reference range, i.e. if whole blood is stored for several days, In vivo-haemolysis parallel increase in haemoglobin (red coloration of plasma/serum) and LD but no parallel increase in potassium, no red coloration of plasma/serum, but decrease in haptoglobin and potential increase in LD, indirect bilirubin and/or reticulocyte-index, respectively, serum/plasma without red coloration, but increase in LD, potassium and acid phosphatase. In plasma no increase of these parameters (i.e. has been noticed in thrombocytosis).