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The Citrate aPTT is a unitized coagulation test intended for in vitro use in performing a quantitative, one-stage activated partial thromboplastin time (aPTT). The Citrate aPTT test is performed using citrated canine or feline whole blood.
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.
Dogs with low concentrations of factor VII will have normal aPTT, with prolonged PT. Depending on the results of coagulation testing, further investigations may involve specific analysis to determine the activities of individual coagulation factors.
Assay. aPTT. activated partial thromboplastin time; 3 minute activation time, ellagic acid reagent. PT. prothrombin time; rabbit brain thromboplastin reagent. TCT. thrombin clotting time; bovine thrombin reagent. Fibrinogen. Clauss (clottable) fibrinogen; same species standard (canine, feline, equine) all others human standard.
21 maj 2021 · What is the normal value of activated partial thromboplastin time (aPTT) in a blood test? Activated partial thromboplastin time (aPTT) in a blood test is age-dependent: Adults: 20 - 38 seconds Children from 11 to 16 years old: 33.9 - 46.1 seconds Children from 6 to 10 years old: 31.8 - 43.7 seconds Children from 1 to 5 years old: 33.6 - 46.3 ...
1 sty 2022 · Results: The reference range of coagulation screening in our study was established as the following values: PT: 10.7–15.3 s, APTT: 26.8–41.2 s, TT: 12.8–21.7 s, and fibrinogen: 223–372...
The APTT and/or PT are prolonged in 50%–85% of dogs with severe liver disease, meaning that the factor activity is 30% of normal. Nevertheless, 2% actually develop hemorrhage and, when bleeding does occur, it is usually associated with concurrent disease.
