Effects of haemolysis, lipaemia and bilirubinaemia on prothrombin time, activated partial thromboplastin time and thrombin time in plasma samples from healthy dogs
1999
Moreno, P. | Ginel, P.J.
Interferences caused by haemolysis, lipaemia and bilirubinaemia on prothrombin time (PT), activated partial thromboplastin time (APTT) and thrombin time (TT) in normal canine plasma samples were studied using commercially available reagents and a steel ball coagulometer. Haemolysis significantly interfered with APTT (P = 0.0076) and TT (P = 0.0292). Regression analysis showed that TT was significantly shortened as haemoglobin concentrations increased. Lipaemia significantly interfered with PT (P = 0.0045), and TT (P = 0.0319), and both tests were shortened when lipaemia increased as demonstrated by regression analysis. Bilirubin significantly interfered with PT (P = 0.0003) and APTT (P = 0.002). Although statistically significant, none of the differences found were of clinical relevance.
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