Platelet counting with a view to an automatic count of hematology analyzer

Early methods to enumerate platelets were inaccurate and irreproducible. To overcome these problems a number of methods for platelet counting has been designed. The aim of this thesis is to present some of them and refer to their advantages and disadvantages in clinical practice. The practical part of this thesis focuses on comparison manual phase microscopy and haematology analyzer results on the basis of collected data. This work also highlights the effect of the applied anticoagulant (EDTA, citrate) on the final platelet count. This fact can help to reveal the pseudothrombocytopenia with an incidence of 0,1 % in general population