Correlation of a quantitative and a semi-quantitative method for proteinuria detection in chronic kidney disease in dogs

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DOI: https://doi.org/10.12681/jhvms.27529
R.D. BAKA
Diagnostic Laboratory, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
C.K. KOUTINAS
Clinic of Companion Animals, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
L.V. ATHANASIOU
Department of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece
Z.S. Polizopoulou
Diagnostic Laboratory, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
Аннотация

Proteinuria can arise in various physiologic and pathologic conditions. Persistent proteinuria without any abnormalities detected in urine sediment is indicative of chronic kidney disease and has great diagnostic value as it is used for the categorization of the patient on IRIS (International Renal Interest Society) staging system. There are several techniques for urine protein measurement including the semi-quantitative/qualitative (urine dipstick, sulfosalicylic acid turbidimetric test and Heller’s reaction test) and the quantitative tests (urine protein to creatinine ratio (UPC) and microalbuminuria assay).The purpose of this study was to correlate the semi-quantitative Heller’s reaction test for proteinuria detection, with the UPC in urine samples from 89 dogs with chronic kidney disease. The non-parametric Spearman’s correlation coefficient was used to correlate Heller’s reaction test with UPC in urine samples from dogs with chronic kidney disease in proteinuria detection. Correlation analysis revealed a statistically significant positive and moderate correlation between the Heller’s reaction test and UPC (r(89)=0.510, p<0.0001) which was slightly improved when USG>1010 (r(72)=0.541, p<0.0001)(urine specific gravity).Heller’s reaction test might be a useful alternative to detect proteinuria when UPC is not available in the clinical setting, however it cannot be used interchangeably with UPC for the IRIS sub-staging of chronic kidney disease (CKD).

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