Analysis of canine and feline haemograms using the VetScan HMT analyser |
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| Authors: | Dewhurst E C Crawford E Cue S Dodkin S German A J Papasouliotis K |
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| Institution: | Langford Veterinary Diagnostics, Department of Clinical Veterinary Science, University of Bristol, Langford. |
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| Abstract: | The VetScan HMT is an impedance counter haematology analyser which produces a full blood count and three-part white blood cell differential. The aim of this study was to compare the results generated by the analyser with those obtained by standard methods used routinely in the authors' laboratory. Blood samples from 68 dogs and 59 cats were run on the VetScan HMT analyser and also subjected to reference methods, and the results obtained were compared. Correlation coefficients (feline/canine) were: 0.97/0.99 for haematocrit (Hct), 0.98/0.99 for haemoglobin (Hb), 0.81/0.98 for total white blood cells (WBC), and 0.89/0.97 for granulocyte and 0.65/0.93 for platelet counts. Coefficients for lymphocyte counts were 0.25/0.28 and for monocyte counts were 0.12/0.79. In conclusion, the VetScan HMT performed well on canine samples, showing excellent correlation for canine Hct, Hb, RBC, WBC, granulocyte and platelet counts. For feline samples, although there was excellent correlation for Hct, Hb and RBC, the WBC and three-part white blood cell differential and platelet count should be interpreted with caution as they can be unreliable. |
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