Anticoagulant drugs Flashcards
(37 cards)
what does vitamin K do in clotting?
allows the blood to clot properly
without vitamin K a pt?
bleeds easily
example of vitamin K antagonsits (VKA)?
Warfarin (Coumadin)
what does warfarin do?
inhibits vit. K production
how long does warfarin stay in the body?
works 3 days later (long half-life)
what VKA is only PO?
warfarin
Thrombin Inhibitor unfractionated medication?
heparin (works fast!) (short half life)
-large molecule
function of unfractionated heparin?
stops antithrombin 3
Routes from unfractionated Heparin?
IV sub q (NO PO)
what is the antidote for unfractionated heaprin?
protamine
what is the antidote for warfarin?
phytonadione (Aquamephyton)
what labs do u need to check before giving warfarin?
PT/INR, platelets, Creatinine/BUN, CBC
normal INR level?
2-3%
what labs should u check before unfractionated heparin?
PPT, CBC, PT (FOR BLEEDING)
low-molecular weight heparin (LMWH) is?
chopped up molecules (fractionated)
example of LMWH?
enoxaparin (lovenox)
Lovenox targets?
more specific for factor X (clotting protein)
what is the antidote for enoxparin (Lovenox)
Protamine
what labs should u check for enoxaparin (lovenox)?
PPT, CBC, PT, INR (FOR BLEEDING)
lovenox is only what routine?
SQ
medications for Factor Xa inhibitor?
rivaroxaban (xarelto)
apixaban (eliquis)
function of Factor Xa inhibitor?
blocks factor xa
-(factor Xa converts prothrombin to thrombin)
people with mechanical heart valve can only take what anticoaug?
warfarin