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The International Normalized Ratio (INR) calculator is a simple, free tool to assess the unified prothrombin time (PT), and its meaning. It's an easy way to evaluate both the extrinsic pathway and the common pathway of coagulation.
Substances important include antithrombin (AT) which, in association with heparin, inactivates many of the coagulation factors, and prostacyclin (PGI2), produced by blood vessel endothelial cells, which inhibits platelet aggregation and causes vasodilation.
Hematology (Complete Blood Count) Reference Ranges. Data on various species compiled and adapted in part from multiple sources, including Latimer KS, Duncan & Prasse’s Veterinary Laboratory Medicine: Clinical Pathology, 5th ed., Wiley-Blackwell, 2011; and Weiss DJ, Wardrop KJ, Schalm’s Veterinary Hematology, 6th ed., Wiley-Blackwell, 2010.
The PT is a unitized coagulation test intended for in vitro use in performing a quantitative, one-stage prothrombin time. The PT test is performed using fresh canine, feline, or equine whole blood. This test is to be used with the Coag Dx* Analyzer and is also compatible with the SCA2000* Coagulation Analyzer.
“Cat age chart and preventive testing recommendations adapted from AAFP-AAHA Feline Life Stage Guidelines. Dog age chart adapted from Dog Owner’s Home Veterinary Handbook, Appendix B: Comparative Age of Dogs and Humans.
Normal Feline Physiologic Values. Body temperature (average) 101.5°F (38.6°C) Heart rate. 120 to 140 beats per minute. Respiratory rate (at rest) 16 to 40 breaths per minute. Average life span. 12 to 20 years (depends on health care, behavior, diet, genetics, and other factors)
3 Αυγ 2015 · Normal PT in cats is less than 22 seconds, but this can vary from laboratory to laboratory. Values greater than 22 seconds indicate a potential bleeding disorder. The most common cause of a prolonged prothrombin time is poisoning with an anticoagulant rodenticide.
