Hematology (Coagulation Factors) Flashcards
(40 cards)
what factors need vitamin K
9,10,7,2
what factors are the actual clot
1-1a
name for factor 1
fibrinogen
name for factor 1a
fibrin
factors are produced where
liver
which factor is made by the endothelial cels of the blood vessels and not the liver
factor 8
intrinsic pathway is under the control of what
heparin
extrinsic pathway is under the control of what
warfarin
what is the process that is used to activate vitamin k
gamma carboxylation
what drug inhibits gamma carboxylation (activation of vitamin K)
warfarin
what three drugs inhibit factor 10
heparin
riveroxaban
apixaban
what are the 3 things made by the endothelial cells to help with keeping the blood vessel vasodialated so that platelets all stay in the middle
NO
PGI2
ADP-Dephosphatase
role of heparin sulfate
attaches to antithrombin III and then cleaves factors 9,10 and 12
where is antithrombin III made
liver
what is lost in nephrotic syndrome and is responsible for the hypercoaguable state
antithrombin 3
what inhibits antithrombin 3 causing the patient to be in a hypercoaguable state
oral contraception
role of thrombomodulin
attaches to 2a and then attaches to protein c and then it cleaves 8a and 5a so that the rest of the coagulation pathway cannot occur and a clot won’t happen
role of tPA
tPA takes plasminogen from the liver and turns it into plasmin and then it chops 1a (fibrin) into tiny pieces causing it to become a “Fibrin Split Product”
4 Thrombolytic Drugs (tPA analogues)
Streptokinase
Urokinase
Alteplase
Retaplase
risk factor for thrombolytic
excessive bleeding
what do thrombolytics do
they induce the change of plasminogen to plasmin
what is the drug that inhibits tPA
Aminocarpuic Acid
first response to BV damage
neurogenic vasoconstriction
2nd response to BV damage
endothelia release (vasoconstriction)