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Pharmacology Roach
Ch 37 Anticoagulant & Thrombolytic Drugs
Term | Definition |
---|---|
Anticoagulants Actions | Interfere with the clotting mechanism of the blood |
Anticoagulant Uses | `Prophylaxis and treatment of DVT `P&T of a.fib w/ embolization `P&T of PE `Adjuvant tx of MI `Prevention of thrombus formation after valve replacement surgery |
Parenteral Anticoagulants specifically used for | `Prevention of postoperative DVT and PE (major ab sx): of clotting in arterial and heart sx, in equip used for extracorporeal circulation, blood transfusions, and in blood samples for lab purposes: of cerebral thrombosis: DIC: IV patency |
Anticoagulant Adverse Reactions | `Bleeding `N,V,Ab cramp, D `Alopecia `Rash `Hepatitis, jaundice, thrombocytopenia, blood dyscrasias |
Anticoagulant Contraindications | `Known hypersensitivity `active bleeding (except caused by DIC) `hemorrhagic disease `TB `leukemia `uncontrolled hypertension `GI ulcers `recent sx of eye/cns `aneurysms `severe renal/hepatic disease `during lactation |
LMWHs contraindications | patients with a hypersensitivity to pork products alternative fondaparinux (Arixtra) |
Anticoagulant Precautions | `fever `heart failure `diarrhea `diabetes `malignancy `hypertension `renal/hepatic disease `psychoses `depression `pt udergoing spinal procedures `women of childbearing age (contraceptive) `pt with potential sire for bleeding or hemorrhage |
Anticoagulant Herbal Considerations: Warfarin should not be combined with | `celery `chamomile `clove `dong quai `feverfew `garlic `ginger `ginkgo biloba `ginseng `green tea `onion `passion flower `red clover `st johns wort `turmeric |
Antiplatelet Actions & Uses | `decreasing the platelets' ability to aggregate in the arterial system `primarily used to treat patients at risk for acute coronary syndrome, MI, stroke, and intermittent claudication |
ADP (adenosine diphosphate) receptor blocker action | alter the platelet cell membrane |
Glycoprotein receptor blockers action | prevent enzyme production |
Antiplatelet Adverse Reactions | `Heart palpitations `Bleeding `Dizziness Headache `N, D, Constipation, dyspepsia |
Antiplatelet Contraindications & Precautions | `Pregnant/Lactating `known hypersensitivity `CHF `active bleeding `thrombotic throbocytopenic purpura (TTP) `Cautions in:older adult patients, pancytopenic patients, or renal/hepatic impaitment |
Thrombolytic Actions | break down fibrin clots by converting plasminogen to plasmin *potential benefits must be weighed carefully against the potential dangers of bleeding |
Thrombolytic Uses | To Treat `acute stroke or MI by lysis of blood clots in the coronary arteries `blood clots causing pulmonary emoboli and DVT `suspected occlusions in central venous catheters |
Thrombolytic Adverse Reactions | Bleeding the most common allergic reactions may also be seen |
Thrombolytic Contraindications and Precautions | `known hypersensitivity `active bleeding `history of stoke, aneurysm, and recent intracranial surgery Cautions in: `recently undergone surgery 10 days `experienced a stroke `hypertension `diabetic retinopathy |