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CVT Anticoagulants and Anticoagulant Antagonists
CVT Anticoagulants and Anticoagulant Antagonists
73
Pharmacology
Professional
08/27/2012

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Term
Mechanisms of Action for Sodium Heparin (Anticoagulant)
Definition
•Derived from porcine intestinal mucosa
•Inhibits blood clotting reactions
•No fibrinolytic activity
•May prevent clot growth
Term
Indications for Sodium Heparin (Anticoagulant)
Definition
•During cardiac catherization
•Treatment of pulmonary embolism
•Control embolization in A-fib
•During cardiac surgery
•Acute MI
•Pre- and post-percutaneous coronary intervention (PCI)
•Ischemic CVA
Term
Mechanisms of Action ReoPro (Abciximab)
Definition
•Inhibits glycoprotein IIb/IIIa receptor in the membrane of the platelet •Antiplatelet •Platelet function recovers around 48 hours after administration
Term
Indications for ReoPro (Abciximab)
(Antiplatelet)
(Glycoprotein (GP) IIb/IIIa inhibitor)
Definition
•Non ―Q‖ wave MI
•Unstable angina with planned PCI within 24 hours
•Post PCI
Term
Contraindications for ReoPro (Abciximab)
(Antiplatelet)
(Glycoprotein (GP) IIb/IIIa inhibitor)
Definition
•Active bleeding
•Bleeding disorders
•Platelet count < 150,000
Term
Mechanisms of Actions Tirofiban HCL (Aggrastat)
Definition
•Inhibits glycoprotein IIb/IIIa receptor in the membrane of the platelet •Antiplatelet •Platelet function recovers around 48 hours after administration •Reversibly binds to GP IIb/IIIa receptor on human platelets and inhibits platelet aggregation •Inhibits thrombotic events during ACS management •Made from protein found in rattlesnake venom •Immediate onset and duration for 4 to 6 hours
Term
Indications for Tirofiban HCL (Aggrastat)
(Antiplatelet)
Definition
•Treatment of acute coronary syndrome (unstable angina or non-Q wave MI)
•Administered in combination with heparin
•Adjunct therapy for those undergoing percutaneous coronary interventions
•Patients with ACS without ST segment elevation
•Medical management of ACS patients
•Used during PCI or atherectomy
Term
Mechanisms of Action for Bivalirudin (Angiomax)
Definition
•Thrombin-specific antithrombotic •Reversible polypeptide thrombin inhibitor •Directly inhibits clot-bound and circulating thrombin •Prevents generation of fibrin and other activation of the clotting cascade •Inhibits thrombin-induced platelet activation, granule release, and aggregation •Does not require antithrombin to produce anticoagulant effects •Derived from saliva of leeches
Term
Indications for Bivalirudin (Angiomax)
•Antithrombotic
Definition
•For use as an anticoagulant in patients undergoing percutaneous coronary intervention (PCI)
•For patients with or at risk for heparin-induced thrombocytopenia and thrombosis syndrome undergoing PCI
•For use as an anticoagulant in patients with unstable angina undergoing percutaneous transluminal coronary angioplasty (PTCA)
Term
Mechanisms of Action Argatroban (Acova)
•Thrombin inhibitor
Definition
•Direct thrombin inhibitor that reversibly binds to the thrombin active site.
•Reversibly binds to the active thrombin site of free and clot-associated thrombin
•Argatroban does not require the co-factor antithrombin III for antithrombotic activity.
•Exerts its anticoagulant effects by inhibiting thrombin-catalyzed or -induced reactions, including fibrin formation; activation of coagulation factors V, VIII, and XIII; activation of protein C; and platelet aggregation.
•Highly selective for thrombin with an inhibitory constant (Ki) of 0.04 μM.
•Capable of inhibiting the action of both free and clot-associated thrombin
Term
Indications for Argatroban (Acova)
•Thrombin inhibitor
Definition
•As an anticoagulant for prophylaxis or treatment of thrombosis in patients with heparin-induced thrombocytopenia.
•As an anticoagulant in patients with or at risk for heparin-induced thrombocytopenia undergoing percutaneous coronary intervention (PCI).
Term
Which drug is derived from porcine intestinal mucosa?
Definition
Sodium Heparin
Term
Contraindications for Sodium Heparin
Definition
•Active bleeding
•Blood dyscrasias
Term
How long does it take for the platelet function to recover after receiving ReoPro (Abciximab)? Is it reversible?
Definition
•Platelet function recovers around 48 hours after administration
•It is not reversible
Term
How long does it take for the platelet function to recover after receiving Tirofiban HCL (Aggrastat)? Is it reversible?
Definition
•Platelet function recovers around 48 hours after administration
•Reversibly binds to GP IIb/IIIa receptor on human platelets and inhibits platelet aggregation
Term
Which drug is made from protein found in rattlesnake venom?
Definition
Tirofiban HCL (Aggrastat)
Term
Precautions for ReoPro (Abciximab)
Definition
•Monitor for thrombocytopenia
•Use in conjunction with heparin
Term
Contraindications for Sodium Heparin
Definition
•Active bleeding
•Blood dyscrasias
Term
Contraindications for Sodium Heparin
Definition
•Active bleeding
•Blood dyscrasias
Term
Which Antiplatelet drug has an immediate onset and duration of 4 to 6 hours?
Definition
Tirofiban HCL (Aggrastat)
Term
Antithrombotic that does not require antithrombin to produce anticoagulant effects?
Definition
Bivalirudin (Angiomax)
Term
Antiplatelet that is indicated for patients with ACS without ST segment elevation
Definition
Tirofiban HCL (Aggrastat)
Term
Adjunct therapy for those undergoing percutaneous coronary interventions
Definition
Tirofiban HCL (Aggrastat)
Term
Which antiplatelet is administered in combination with heparin?
Definition
Tirofiban HCL (Aggrastat)
Term
During therapy with Aggrastat, patients should be monitored for potential bleeding. When bleeding cannot be controlled with pressure what should you do?
Definition
Infusion of Aggrastat and heparin should be discontinued.
Term
What drug is used to reverse the effects of heparin post catheterization or coronary artery bypass graft (CABG)?
Definition
Protamine Sulfate
Term
Drug Classification for Bivalirudin (Angiomax)
Definition
Antithrombotic
Term
Indicated for patients with or at risk for heparin-induced thrombocytopenia AND thrombosis syndrome undergoing PCI
Definition
Bivalirudin (Angiomax)
•Antithrombotic
Term
Mechanisms of Action for Aspirin
•Analgesic
•Antiplatelet
Definition
•Anti-inflammatory action:
•Inhibits prostaglandin synthesis
•Enhances antigen removal and reduces the spread of inflammation in ground substances
•Analgesic action (primarily peripheral)
•Antipyretic action:
•Lowers body temperature in fever by indirectly causing centrally mediated peripheral vasodilation and sweating
•Inhibits prostaglandin synthesis
•Antiplatelet action
•Powerful inhibition of platelet aggregation
•Permanent inhibition of prostaglandin H synthase 1 or cyclooxygenase (COX)-1
•Blocks synthesis of precursor to thromboxane A2
•Impedes hepatic synthesis of blood coagulation factors, possibly via inhibition of vitamin K activity
Term
Indications for Aspirin
•Analgesic
•Antiplatelet
Definition
•Relief of pain of low or moderate intensity
•Prevent recurrence or prophylaxis in MI
•As part of antithrombotic treatment in AMI
•Prophylaxis against thromboembolism (DVT, TIA)
Term
Contraindications for Aspirin
•Analgesic
•Antiplatelet
Definition
•Hypersensitivity or allergy to salicylates
•History of GI ulceration, bleeding, or other disorders
•Recent history of surgery
•Severe anemia
•Vitamin K deficiency
•Hemophilia or other coagulopathies
•Asthma
•Congestive heart failure
•Pregnancy (third trimester)
Term
Precautions for Aspirin
•Analgesic
•Antiplatelet
Definition
•Observe for signs of bleeding (petechiae, ecchymosis, bleeding gums, black or bloody stools, cloudy or bloody urine).
•Do not use enteric-coated aspirin products in emergency situations.
Term
Mechanisms of Action for Clopidogrel (Plavix)
•Antiplatelet
•Anticoagulant
Definition
•Thienopyridine that inhibits platelet aggregation by selectively preventing the binding of adenosine diphosphate (ADP) to its platelet receptor
•Inhibits subsequent ADP-mediated activation of the glycoprotein IIb/IIIa complex
•Results in prolongation of bleeding time due to inhibition of clotting
•Irreversible modification of platelet ADP receptor; lasts the lifetime of the platelet
Term
Indications for Clopidogrel (Plavix)
•Antiplatelet
•Anticoagulant
Definition
•Reduction of atherosclerotic events in patients with recent stroke, MI, or established peripheral arterial disease
•To improve outcome of patients with acute coronary syndrome and acute MI undergoing PCI (including with stent placement)
•Combination therapy with aspirin in patients with acute coronary syndrome and acute MI not undergoing PCI
Term
Discontinue use of what medication for 7 days prior to elective surgery?
Definition
Clopidogrel (Plavix)
Term
Contraindications for Clopidogrel (Plavix)
Definition
•Drug hypersensitivity
•Acute pathologic bleeding, such as peptic ulcer or intracranial hemorrhage
•Lactating mothers
Term
Mechanisms of Action for Enalapril (Vasotec)
Definition
•Inhibition of conversion of angiotensin I to angiotensin II, blocking vasopressor activity and aldosterone secretion •Reduction in blood pressure due to reduced vasoconstriction (afterload) •Reduction in pulmonary capillary wedge pressure (measure of preload) and pulmonary vascular resistance
Term
Indications for Enalapril (Vasotec)
•Antihypertensive
Definition
•Mild to moderate hypertension (may combine a diuretic in therapy)
•Post-myocardial infarction (to minimize ventricular remodeling; usually initiated 6 hours after onset of symptoms)
•Post-myocardial infarction for preload and afterload reduction
•Congestive heart failure
Term
Contraindications for Enalapril (Vasotec)
•Antihypertensive
Definition
•Pregnancy
•Hypersensitivity to ACE inhibitors
•Pre-existing hypotension
•Cardiogenic shock
•Cautious use in renal impairment or renal artery stenosis, hypovolemia, hepatic insufficiency, diabetes mellitus, diuretic or dialysis therapy, and conditions where hypotension would present a potential hazard (e.g., cerebrovascular insufficiency)
Term
Exerts its anticoagulant effects by inhibiting thrombin-catalyzed or -induced reactions, including fibrin formation; activation of coagulation factors V, VIII, and XIII; activation of protein C; and platelet aggregation.
Definition
Argatroban (Acova)
•Thrombin inhibitor
Term
Capable of inhibiting the action of both free and clot-associated thrombin
Definition
Argatroban (Acova)
•Thrombin inhibitor
Term
Exercise caution when administering Argatroban to patients with hepatic impairment by?
Definition
Starting with a lower dose and carefully titrating until the desired level of anticoagulation is achieved.
Term
Which drug isfor use as an anticoagulant in patients with unstable angina undergoing percutaneous transluminal coronary angioplasty (PTCA)?
Definition
Bivalirudin (Angiomax)
•Antithrombotic
Term
Which drug is used for post-myocardial infarction (to minimize ventricular remodeling)? How long before ventricular remodeling usually start?
Definition
-Enalapril (Vasotec)
-usually initiated 6 hours after onset of symptoms
Term
Reversibly binds to GP IIb/IIIa receptor on human platelets and inhibits platelet aggregation
Definition
Tirofiban HCL (Aggrastat)
Term
•Thrombin-specific antithrombotic
•Reversible polypeptide thrombin inhibitor
•Directly inhibits clot-bound and circulating thrombin
Definition
Bivalirudin (Angiomax)
Term
•Direct thrombin inhibitor that reversibly binds to the thrombin active site.
•Reversibly binds to the active thrombin site of free and clot-associated thrombin
Definition
Argatroban (Acova)
Term
•Low molecular weight
•Anticoagulant
•Inhibit thrombin generated by factor Xa
•Inhibit thrombin indirectly by formation of a complex with antithrombin III
Definition
Lovenox (Enoxaparin)
Term
•Anticoagulant effect when used alone •In heparinized patients, it neutralizes both anticoagulant effects
Definition

Protamine Sulfate

•Reversal agent of heparin

Term
•Tissue plasminogen activator from recombinant DNA
•Fibrin specific
•Dissolves stable fibrin clots
Definition
Activase
Term
•Inhibit thrombin generated by factor Xa
•Inhibit thrombin indirectly by formation of a complex with antithrombin III
Definition
Lovenox (Enoxaparin)
•Anticoagulant
Term
Precautions for Lovenox (Enoxaparin)
Definition
•Monitor for thrombocytopenia.
•Reduce dosage in patients that weigh < 45 kg or with renal impairment.
Term
Contraindications for Lovenox (Enoxaparin)
Definition
•Bleeding disorder
•Platelet count < 150,000
Term
Contraindications for Protamine Sulfate
Definition
•Patients with allergies to seafood
Term
•Fibrin specific
•Dissolves stable fibrin clots
Definition
Activase (tPA)
Term
•Catalyzes with fibrin
•Converts plasminogen into plasmin
Definition
Retavase
Term
Blocks synthesis of precursor to thromboxane A2
Definition
Aspirin
Term
Impedes hepatic synthesis of blood coagulation factors, possibly via inhibition of vitamin K activity
Definition
Aspirin
Term
Permanent inhibition of prostaglandin H synthase 1 or cyclooxygenase (COX)-1
Definition
Aspirin
Term
Inhibits subsequent ADP-mediated activation of the glycoprotein IIb/IIIa complex
Definition
Clopidogrel (Plavix)
•Antiplatelet
•Anticoagulant
Term
Which anticoagulant drug should you not give to lactating mothers?
Definition
Clopidogrel (Plavix)
•Antiplatelet
•Anticoagulant
Term
Indications for Integrilin (Eptifibatide)
•Antiplatelet
•Glycoprotein (GP) IIb/IIIa inhibitor
Definition
•Non ―Q‖ wave MI
•Unstable angina medically managed
•Non ―Q‖ wave Mi or unstable angina undergoing PCI
Term
Mechanisms of Action for integrilin (Eptifibatide)
Definition
•Antiplatelet •Inhibits platelet aggregation by preventing binding of fibrinogen and other ligans to GP Iib/IIIa receptors
Term
Indicated for patients with unstable angina that is medically managed
Definition
Integrilin (Eptifibatide)
•Antiplatelet
•Glycoprotein (GP) IIb/IIIa inhibitor
Term
Mechanisms of Action for Lovenox (Enoxaparin)
•Anticoagulant
Definition
•Low molecular weight
•Anticoagulant
•Inhibit thrombin generated by factor Xa
•Inhibit thrombin indirectly by formation of a complex with antithrombin III
Term
Indications for Lovenox (Enoxaparin)
•Anticoagulant
Definition
•Non ―Q‖ wave MI
•Unstable angina
Term
Route for Lovenox (Enoxaparin)
Definition
•Subcutaneous
Term
For use as an anticoagulant in patients with unstable angina undergoing percutaneous transluminal coronary angioplasty (PTCA)
Definition
Bivalirudin (Angiomax)
Term
Which drug is derived from the saliva of leeches?
Definition
Bivalirudin (Angiomax)
Term
Contraindications for Argatroban (Acova)
Definition
•Overt major bleeding
•Hypersensitivity to drug or its components
Term
Clopidogrel (Plavix) inhibits subsequent ADP-mediated activation of what?
Definition
glycoprotein IIb/IIIa complex resulting in prolongation of bleeding time due to inhibition of clotting
Term
Indications for Retavase
Definition
-acute MI in adults
-coronary ischemia with new onset left bundle branch block (LBBB)
-coronary thrombus
Term
Indications for Activase (tPA)
Definition
-acute MI in adults
-used within 4 - 6 hours of onset of symptoms
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