VetScan HM5 Haematology Analyser – Advanced Haematology Five-Part Differential The VetScan HM5 is a fully-automated, five-part differential haematology analyser displaying a comprehensive 22-parameter complete blood count (CBC) with cellular histograms on an easy-to-read touch-screen. Its superior performance and true database management capability make it the optimal haematology system currently available. We are the only practice in the area to have machines of this calibre in each of our sites.