Objetivou-se comparar a eficácia do método portátil de mensuração glicêmica com o método laboratorial de referência, utilizando-se amostras de sangue venoso central e de sangue capilar de 20 felinos. Considerou-se como valor padrão de referência o obtido pelo método laboratorial a partir de amostra de sangue venoso central. Outros dois valores foram obtidos por glicosímetro portátil, sendo utilizada amostra do mesmo sangue venoso central e outra amostra a partir de sangue capilar. Para os 20 felinos, os resultados glicêmicos verificados pelo método laboratorial tiveram média de 80mg/dL; e os resultados constatados pelo glicosímetro, média de 84,1mg/dL com sangue venoso central e 73,1mg/dL com sangue capilar. As médias glicêmicas obtidas pelo glicosímetro com ambas as amostras de sangue em relação à alcançada pelo método laboratorial resultaram em variações inferiores à máxima instituída (20%) por órgãos reguladores de glicosímetros e por entidade de padronização, bem como a variação entre as médias glicêmicas obtidas pelo aparelho com as distintas amostras de sangue. Na análise comparativa houve diferença significativa entre os métodos (p<0,05). Concluiu-se que o glicosímetro portátil é eficaz para mensuração da glicemia em felinos, tanto a partir de amostras de sangue venoso central como de sangue capilar.

The objective of this study was to compare the efficacy of portable blood glucose measurement method in relation to the laboratory reference method, using central venous and capillary blood samples from 20 cats. The value obtained by the laboratory method using central venous blood sample was considered as the standard reference value. Other two values were obtained from the portable blood glucose meter, in which a sample from the same central venous blood and another one sample from capillary blood were used. For the 20 cats, the blood glucose results obtained by the laboratory method had an average of 80mg/dL; and the results found by the glucometer had an average of 84.1mg/dL with central venous blood and of 73.1mg/dL with capillary blood. The glycemic averages obtained by the glucometer with both blood samples compared to that achieved by the laboratory method resulted in variations below the maximum established (20%) by associations that regulate portable glucometers and by the organization for standardization, as well as the variation between the glycemic averages obtained by the glucometer using different blood samples. In the comparative analysis, there was no significant difference between the methods (p<0.05). In conclusion, the portable glucometer is effective in measuring blood glucose in cats, both from central venous blood and capillary blood samples.