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Coagulation
n/a
31
Pharmacology
Graduate
03/01/2013

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Cards

Term
Virchow's Triad
Definition
1)endothelial damage
2) venous stasis
3)Hypercoagulability
Term
Anticoagulation purposes
Definition
reduce ability to form blood clots
Term
Heparin
uses
Definition
Tx and prevent clot formation. Maintain extracorpeal circulation during CABG and renal hemodialysis. Treating clot formation and preventing embolus formation in a-fib. Prevent further clot formation in AMI.
Term
Heparin
MOA
Definition
Inhibits formation of thrombin and conversion of fibrinogen to fibrin preventing stable clot formation. Cannot lyse established thrombi.
Term
Heparin
administration
Definition
IM/IV/SQ
1/2 life 1.5hrs. weight based. monitor and adjust based on PTT
Term
Heparin
drug interactions
Definition
other anticoagulants, antibiotics (protein binding), antihistamines, nicotine, digoxin, nitroglycerin
Term
Heparin
side effects
Definition
BLEEDING, hemorrhage, chest pain, HIT, hematoma
Term
Heparing reversal treatment
Definition
protamine sulfate(1:1) or FFP's
Term
Low Molecular weight heparin
Lovenox
uses
Definition
DVT prophlyaxsis (sx or medical), tx of DVT or PE, prevent ischemic complications of unstable angina and AMI
Term
Lovenox
MOA
Definition
Blocks Xa and IIa in the clotting pathway to prevent thrombus formation. preferential to factor X-less affect on platelets than heparin
Term
Lovenox
drug interactions
Definition
anticoagulants, antibiotics, herbals (G's)
Term
Lovenox
side effects
Definition
BLEEDING, hematomas, injection site reactions
Term
Lovenox reversal tx
Definition
FFP, protamine sulfate-doesnt work quite as well
Term
Warfarin
uses
Definition
prevention and tx of DVT and PE. Prevent embolic risk in a-fib. Adjunct therapy for prophylaxis of systemic embolism post MI
Term
Warfarin
MOA
Definition
Interferes w/Vit K clotting factors (II, VII, IX, and X). Clotting factors must be depleted in the blood before anticoagulation eefects take effect
Term
Warfarin
kinetics
Definition
po(iv), highly protein bound. 1/2 life 40hrs. effects in 36-72 hrs. therapeutic in 5-7 days. starting dose 5-10mg for 2-3 days. adjust based on INR. normally want 2-3
Term
Warfarin
side effects
Definition
BLEEDING, N/V/D, GI bleed, tast disturbances, hematuria, osteoporosis, "purple toes syndrome"
Term
Warfarin
drug interactions
Definition
P450 system-multi interactions
amiodarone/quinolones may increase INR
Term
Warfarin reversal tx
Definition
Vit K and FFP if necessary. <5 and no bleed just lower dose or omit next dose. 5-9 maybe po Vit K 2-5mg. >9 Vit K po 3-5 & repeat in 2448 hr if necessary. >20 Vit K IV 10 and FFP
Term
Pradaxa
uses
Definition
stroke prophylaxis and systemic embolism prophylaxis in pt w/non-valvular a-fib. DVT/PE prevention
Term
Pradaxa
MOA
Definition
Competitive direct thrombin inhibitor that inhibit both free and clot-bound thrombin. Prevents thrombin-induced platelet aggregation and development of a thrombus by preventing conversion of fibrinogen into firin.
Term
Pradaxa
kinetics
Definition
pro-drug, 35% protein bound, not a P450, eliminated renally, 1/2 life 12-17hrs
Term
Pradaxa
Adverse effects
Definition
dyspepsia, BLEEDING, GI HEMMORHAGE, gastritis, wound secretions
Term
Pradaxa
drug interactions
Definition
Anticoagulants/herbals. P-glycoprotein inducers
Term
Pradaxa
monitoring
Definition
If going to have sx-stop 1-2 days before, longer if renal impaired.
Term
Pradaxa overdose
Definition
NO ANTIDOTE
FFP/PRBC, clinical support
Term
Converting from warfarin to pradaxa
Definition
1)stop warfarin
2)wait until INR<2
Term
Converting from pradaxa to warfarin
Definition
1)based on CrCl
the better the CrCl(>50)earlier start (3 days) warfarin before stopping pradaxa. the lower CrCl(15-30)start warfarin later(1day) before stopping pradaxa
Term
Converting from parentral anticoag to pradaxa
Definition
intermittent dosing: 0-2hr before next (IV/SQ) dose was due
Continuous dosing:give pradaxa at time of d/c
Term
Converting from pradaxa to parentral anticoag
Definition
wait 12hr CrCl >30 or 24h CrCl<30 after pradaxa before starting
Term
Pradaxa
pt teaching
Definition
only good for 30days once bottle is open
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