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Validation of the Medonic CA620/530 Vet 20-µl microcapillary sampler system for hematology testing of feline blood

Correspondence: ¹Corresponding Author: Nathalie H. Bourgès-Abella, Department of Clinical Sciences, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse Cedex 03, France. n.bourges-abella{at}envt.fr

The aim of the current study was to compare feline hematologic variables in blood collected in microcapillary tubes (20 µl) and conventional blood tubes with the Medonic CA620/530 Vet in-house hematologic analyzer. A comparison of results obtained in 60 cats presented at the clinics of the veterinary school showed that the correlations between the 2 methods were 0.97 for white blood cell, 0.95 for red blood cell, and 0.93 for platelet counts; 0.92 for hemoglobin concentration; and 0.99 for mean corpuscular volume. No clinically relevant differences between the 2 blood sampling techniques were observed for any variable, which suggests that both techniques are interchangeable in cats. Moreover, microcapillary tubes would allow easier repeated sampling in the same cat and would likely be useful in other small species.

Key Words: Cats • Medonic CA620/530 Vet hematology analyzer • method comparison • microcapillary samples