Coagulation Tests and Disorders Flashcards
Platelet “Clumping” is common in what animal?
Cat….if clumping observed, platelet count is likely adequate
Buchal Mucosal Bleeding Time Coagulation Test
Lancet is used on MM. Bleeding should stop in 1 to 5 minutes for normal results
ACT (Activated Clotting Time) Test
Blood sample added to diatomaceous Earth. A clot should form within 60 to 90 seconds for normal result
Primary Coagulation Disorders (rare)
Defect in the Coagulation Factors
Secondary Coagulation Disorders
Decreased Production of Platelets or
Increased Destruction of Platelets
What Factor deficiency causes Hemophilia A
Factor VIII
What Factor deficiency causes Hemophilia B
Factor IX or Christmas Factor
What is the most common inherited coagulation factor disorder in domestic animals?
Von Willebrand Disease
What tests will be abnormal in the presence of a hereditary coagulation disorder?
Intrinsic Pathway Tests
What are 2 ACQUIRED Coagulation Disorders?
- Thrombocytopenia
- Vitamin K Deficiency
What is the most common coagulation disorder seen in SA veterinary practice?
Thrombocytopenia
What are Vitamin K dependent Factors
II
VII
IX
X
What is Von Willebrand Disease?
Decreased or Deficient production of Von Willebrand Factor
