Automation in the hematology laboratory.

When the values of the MCHC are above 36 g/dl something must be wrong with the blood sample of the patient. One of the reasons can be agglutination e. g. by cold agglutinins. The blood sample should be reanalysed before and after heating for 1 hour at 37°C. If the values change: cold agglutinins are present; if no change occurs paraproteins, or other disturbing factors, such as bilirubin or high leucocyte levels, will be found.