Evaluation of Abdominal Fluid: Peripheral Blood Creatinine and Potassium Ratios for Diagnosis of Uroperitoneum in Dogs
Article first published online: 1 JUL 2007
Journal of Veterinary Emergency and Critical Care
Volume 11, Issue 4, pages 275–280, December 2001
How to Cite
Schmiedt, C., Tobias, K. M. and Otto, C. M. (2001), Evaluation of Abdominal Fluid: Peripheral Blood Creatinine and Potassium Ratios for Diagnosis of Uroperitoneum in Dogs. Journal of Veterinary Emergency and Critical Care, 11: 275–280. doi: 10.1111/j.1476-4431.2001.tb00066.x
- Issue published online: 1 JUL 2007
- Article first published online: 1 JUL 2007
- bladder rupture;
- diagnostic peritoneal lavage.
Objective:To determine the clinical efficacy of abdominal fluid to peripheral blood ratios of creatinine and potassium concentrations to diagnose uroperitoneum in dogs.
Design:Records of 13 dogs with confirmed uroabdomen were retrospectively analyzed. Prospective evaluation of 8 dogs with nonrenal ascites provided data for a control population.
Setting:Veterinary Medical Teaching Hospital.
Animals:Client owned dogs.
Measurements and Main Results:Abdominal fluid potassium (mEq/L) and creatinine concentrations (mg/dl) were recorded. Peripheral blood potassium and creatinine concentrations were also recorded. Ratios were calculated based on these values. An abdominal fluid creatinine concentration to peripheral blood creatinine concentration ratio of > 2:1 was predictive of uroabdomen in dogs (specificity 100%, sensitivity 86%). An abdominal fluid potassium concentration to peripheral blood potassium concentration of > 1.4:1 is also predictive of uroabdomen in dogs (specificity 100%, sensitivity 100%). All dogs with uroabdomen had an abdominal fluid creatinine concentration that was at least 4 times normal peripheral blood levels.
Conclusion:Abdominal fluid to peripheral blood potassium and creatinine ratios provide a means to diagnose uroperitoneum in dogs without elevated peripheral blood creatinine.