ACQUIRED DISORDERS OF COAGULATION Flashcards
If fresh plasma cannot correct the coagulation, it means that there is a presence of?
Inhibitors
This is a non-specific inhibitor directed towards platelet phospholipid and phospholipid-protein complex
Lupus anticoagulant / Antiphospholipid Antibodies
LA/APA is a non-specific inhibitor directed towards _______________ and ______________ complex?
platelet phospholipid
phospholipid-protein
This are IgG autoantibodies directed against specific coagulation factors?
Specific factor inhibitors
What is the coagulation result of LA/APA?
Prolongs APTT and dilute Rusell venom test
Specific factor inhibitors can be detected only with the use of?
Factor assay
Vitamin K deficiency will result in a functional decrease of factor?
10, 9, 7, 2, C, S, and Z
What causes vitamin K deficiency?
Presence of vitamin K antagonist
Obstructive jaundice
Decreased absorption
Decreased of normal flora in the GIT
Liver disease can decrease or destroy most of the coagulation factor except for?
Factor VIII and IV
Under liver disease, the factor to be destroyed last is the?
Factor I
Under liver disease, the factor to be destroyed first is the?
Factor VII and PK
What is the coagulation test of liver disease?
PT and APTT are prolonged
Enumerate the acquired disorders of coagulation
Inhibitors
Vitamin K deficiency
Liver disease
Massive transfusion
Disseminated Intravascular Coagulation (DIC)
This is defined as the replacement of more than 1.5 mL of blood volume in 24 hours resulting in DILUTION of coagulation factors and increased production of anticoagulants
Massive transfusion
Under massive transfusions, the replacement of 1.5 mL of blood volume in 24 hours will lead to?
Dilution of coagulation factors
Increased in anticoagulants
By how much does blood transfusion increase anticoagulant?
10%
This results from the liberation of thromboplastic substances that activates coagulation and fibrinolysis
DIC
What is activated through the contact phase?
Plasminogen
When plasminogen is activated through the contact phase, the coagulation and fibrinolysis will occur simultaneously, resulting in?
Consumption of coagulation factors and platelets
RBC fragmentation
Increased in FDP and FSP