Avaliação de dois glicosímetros veterinários para uso em cães

Abstract

Glucometers are important tools to monitoring and screening glycaemia in dogs both in clinic and home environment. The test procedures are almost non-invasive and lead fast results enabling prompt institution of therapeutic measures suitable to the actual patients clinical condition. However, there are inherent factors of test procedures which may be configured as potential sources of inaccuracy in measurements. Those factors are due to handling and operation system of glucometers, and could also be due to the actual patients physiopathological condition. The ISO 15197:2013 establish standards to evaluate the glucometers accuracy, suggesting limits of glycaemia measured by the device in comparison to that provided by laboratory reference methods. The present study has evaluated performance of two veterinary glucometers (AlphaTrak 2, GT1, and IPet, GT2) in measuring glycaemia of 100 patients admitted at clinical routine of UFMGs veterinary school hospital. The accuracy was assessed with comparison between the results obtained using those glucometers in capillary samples, and glycaemia obtained in plasma samples by the laboratorial methods of hexoquinase and glucose oxidase. It was evaluated the influence of parameters of hematocrit and plasmatic proteins in the glucometers performance. No significant difference was found between the blood glucose averages provided by the two glucometers in transformed plasma equivalent values, and both were identified as different of both laboratorial methods. The haematocrit variation was inversely proportional to the glycaemia measured by GT1 and, on the hand, the variation of total plasma proteins concentration was direct proportion of glucose values provided by GT2. Both glucometers reached 99% of accuracy according to the standards intended by ISO15197:2013.