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hematologic drugs
Question | Answer |
---|---|
what do anticoagulants do? | prevents clotting of blood, but does not break clots down |
what conditions would you use anticoagulants for? | prevention of venous thrombosis, pulmonary embolism,prostetic heart valve paptients, prevention of recurrent MI and ischemic attacks,cerebrovascular accident, adjunct therapy during heart surgery/procedures, postoperative, acute MI, unstable angina. |
what are the general side effects of aticoagulants? | hemorrhage is the general side effect but there are more to add to specific drugs |
what are common drugs that the patient should not take while taking anticoagulants? | NSAIDS-ASPRIN!! |
name the two commonly used anticoagulants: | factor Xa/thrombin inhibitors: heprin, Xa inhibitor: enoxaparin/Lovenox, warfarin/Cumadin |
what are the side effects of heprin/Lovenox? | Hemorrhage, thrombocytopenia(low platelett count), Hypersensitivity reaction, Neurological injury from hemotoma formation during lumbar puncture/epidural anesthesia |
what drug reverses the action of heprin? | Protamine reverses heprin activity |
what should the nurse monitor while a patient is taking heprin? | vitals, aPTT should be no higher than 2X the baseline value, monitor platelet count stop if <100,000 use lepirudin instead, administer test dose firstmonitor spinal site fro hemotoma |
list patient instructions for using heprin: | report bruising, hematomas, black tarry stools, calf pain, SOB, rash, itching |
what are specific drug interactions for a patient taking heprin? | NSAIDS (ASPRIN!) antiplatelet drugs increase blleeding risk, IV nitroglycerin, some herbals |
precaution is advised for patients with what conditions when taking heprin? | peptic ulcer disease, hemophiliea, severe hypertension, hepatic/renal disease, dissecting aneurysm |
what are the specific side effects of warfarin/Coumadin? | hemorrhage, toxicity |
what are the interventions used/applied to a patient taking warfarin? | monitor vitals, watching fro hypotension, tachycardia, check hematocrit level, for overdose stop taking, administer vitamin K parenterally/IV. if vit. k does not reverse toxicity administer frozen plasma or whole blood |
what are other drugs that interact if taken with heprin? | ASPRIN, TYLENOL, glucocorticoids, sulfonomides, cephelosporins, phenobarbitol, Dilantin, Tegretol, of course vitamin K, excessive food w vit. K, many OTC and herbal meds. |
name the most common anticoagulants: | warfarin/Coumadin, heprin, enoxaparin/Lovenox |
name the three classifications of drugs that prevent or dissolve thrombi: | anticoagulants, antiplatelets,thrombolitics |
what are thrombolitics? | thrombolytics break down thrombi that have already developed |
Thrombolytics are used to treat what conditions? | acute MI, deep vain thrombosis, massive pulmonary emboli, ischemic cerebrovascular accidents, in occluded IV |
The thrombolytic prototype drug is called what? | alteplase (Activase) |
thrombolytic drugs use what suffix? | -ase |
what are the side effects of the thrombolytic alteplase/Activase? | bleeding |
what is the route given for the thrombolytic alteplase/Activase? | IV |
what is tghe timing for giving alteplase for best therapeutic effect of MI? | 4 to 6 hours of the the onset of symptoms |
what will the nurse monitor when gining alteplase to a patient? | Hgb, Hct, aPTT, PT, INR and fibrinogen levels, vitals, ensure iv access for emergency drugs. |
for severe bleeding while taking alteplase the nurse should administer what drug? | aminocaproic acid (Amicar) and give blood products |
patient should report what symptoms when taking alteplase? | prolonged bleeding, headache, unilateral weakness |
what are the four types of anteplatelet drugs? | salicylics, ADP inhibitors, glycoprotein inhibitors, arterial vasodilators |
salicylics do what? | inhibit platelet aggregation, reduce MI, angina, ischemic cerebrovascular incident, prevents occlusion od coronary stents |
what is the prototype drug used for salicylics? | asprin (Ecotrin) |
aprin prevents | vasoconstriction, platelet aggregation |
how much is given to prevent cardivasular and cerebrovascular thrombi | 81 mg daily |
what is the ADP inhibitor prototype drug? | Plavix/clopidogrel |
what is the therapeutic effect of plavix/clopidogtrel? | reduced/inhibited platelet aggregation for risk reduction for MI, ischemic cerebrovascular accidents, ischemic attacks, coronary stents. |
what are the side effects of PLavix? | gastric upset, bleeding, thrombocytopenia purpura |
what precautions should be taken when giving plavix? | when pt. has GI bleed, liver/kidney dysfuncion, risk for bleeding |
what drugs should be avoided while on plavix? | NSAIDS, glcocoricoids, alcohol, proton pump inhibitors, herbals |
what pt. instructions should the nurse provide to a pt. taking plavix? | report prolonged bleeding, ^fluids for diarrhea, avoid alcohol, report GI bleed, sever sudden headache, easy bruising |
contraindications for plavix use are? | peptic ulcers, bleeding disorders, thrombocytopenia, intracranial bleeding |
give hematologic drug for what two types of anemia? | microcytic (iron deficiency) and megaloblastic (B12 dificiency) anemias |
what prototype drug is given for iron deficiency microcytic anemia? | ferrous sulfate/ Feosol, iron dextran(INFed) |
what are the side effects of Feosol? | nausea, constipation, heartburn, diarrhea, metallic taste, staining teeth, fatal iron toxicity |
can Feosol be taken wityh food? | yes with reduced absorption |
what patient instruction is important to relay to pt. regarding Feosol? | dark green black stools are expected, dilute liquid form w water, drink through straw |
contraindications for Feosol are? | hemolitic anemia, sever liver disease, peptic ulcer, colitis |
what is pernicious anemia? | lack of intrinsic factor |
what is the protype drug used to treat pernicious anemia? | vitamin B12, cyanocoalamin (Nascobal, Cyanoject) |
what routes may be used in administering vit. B12? | po,subq, IM, intranassaly |
what administration interventions need to be done for vit b12? | confirm B12 gastric absorption ability using schilling test for po route, give w food, give intranasally ir parenterally if pos. gastric malabsorption, give 1 hr pc or ac, expect lifelong treatment, |
what nursing intervention will be done when administering Vit. B12? | obtain B12 Hgb, Hct, RBC, reticulocyte count, monitor every 3-6 months, encourge diet high in B12 |
what are the side effects of Vit B12 | diahrrhea, hypokalemia, |
what other drugs intewract w Vit B12? | folic acid, chloramphenicol, alcohol, neomycin, VITAMIN C!!!!! |
what drug is used for megaloblastic anemia? | folic acid (Folacin) |
what are the therapeutic uses of folic acid? | folate deficiency (alcoholism), prevent neural tube defects in developing fetus, megaloblastic |
what are the side effects of folic acid? | flushing |
what are the contraindications of folic acid? | vit B12 deficiency, other types of anemia, neonates |
what are interactions of folic acid? | folic acid may mask B12 deficiency, chloramphenicol, phynatoin/Dilantin |
what are the three typess of drugs that treat hemophilia? | factor viii, factor ix, and Desmopressin |
what are the therapeutic uses of desmopressin? | mild hemophilia A- controls trauma induced bleeding and maintains homeostasis during surgery |
what are the side effects of desmopressin? | fluid retention, hyponatremia |
the nurse should do what interventions for a pt. on desmopressin? | monitor fluid I&O, monitor serum sodium levels, |
the patient on desmopressin should: | weigh self daily and report significant increaase and edema |
what are the contraindications of desmopressin? | renal failure, nephrongenic diabetes insipidus, type II B von Willerrands disease(von Willerbrand factor allows for platlet plug formation, missing this allows for blleding disorder) |
what route can I give desmopressin? | IV, and intranasally |
what should the nurse look for for when administrering desmopressin IV? | do not use if discolered, or w particles, dilute in 0.9% sodium chloride, administer IV bolus slowly over 15-30 min |
what is the prototype drug to treat hemophilia A? | plasma derived Hemofil-M and recombinate factor VIII Advate |
what is the prototpye drug to treat hemophilia B? | plasma derived Alpha-Nine SD, and recombinate IX Benefix |
how do you administer facter VIII and IX? | powdered form into solution in IV, slowly IV bolus 5-10 min, give regularly scheduled doses one to two times per week to prevent bleeding, |
which is safe plasma derived or recombinate VIII/IX? | recombinate is safer..plasma derived can cause Cretzfeldt-Jakob disease((CJD) is a form of brain damage that leads to a rapid decrease of mental function and movement) |
The nurse should inform the patient of what information regarding factor VIII and IX? | risk of hepititis and HIV are low, and to report rash, itching swelling of the air way..reaction to the drug, explain creutzfeldt disease/risk and have emergency equipment and epinepherine for allergic reaction |
what are the side effects of factor VIII and IX? | allergic reaction, anaphylaxis, creutzfeldt-jakob disease, |
what are other drug interactions expected if taken with factor VIII and IX? | Asprin, first generation Cox-1 and COX 2 inhibiting NSAIDS, |
what are the three factors that support hematopoiesis? | erythropoietic growth factor,leukopoietic growth factor, thrombopoietic growth factor |
what is the drug name for the erythropoietic growth factor? | epoetin alfa (Epogen, Procrit) |
what is the therapeutic use of epoetin alfa/Epogen? | spports production of erythrocytes in chronic renal failure, preoperative anemia, chemotherapy, HIV therapy |
what are the side effects of epoetin alfa/Epogen? | hypertension, cardiovascular and cerebrovascular events, (MI, heart failure..)malignancy progreassion |
interventions the nurse would do in regards to epoietin/Epogen are: | do not give to cancer patient NOT receiving chemotherapy or radiation, or the cancer patients whose Hgb is above 10mg/dl, monitor tumor growth, give lowest sode possible, monitor blood pressure |
can epoetin/Epogen be gin to an iron deficient anemic patient? | NO |
are there currently and drugs that interact with EPOGEN? | NO |
What is the drug name for leukopoietic growth factor? | filgrastim (Neupogen) |
what are the side effects of filgrastim/Neupogen? | Leukocytosis, bone pain fever, splenomegaly |
intsruct the paitient to report what symptom when taking filgrastim/ Neupogen? | report bone pain or fever, report abdominal pain |
based on the side effects of Neupogen, what would the nurse look for/monitor? | CBC, lower or stop use if WBC is above 10,000, monitor bone pain, T, monitor spleen enlargement |
what are the contraindications of Neupogen? | sensitivity to E.coli, acute respiratory distress, current chemo/radiation |
Neupogen interacts with what other drug? | cytotoxic drugs |
What is the drug name for the thrombopoietic growth factor? | oprevekin (interleukin-11, Neumega) |
what are the therapeutic uses of oprelvekin/Neumega? | thrombocytopenia from myelosuppressive chemotherapy for nonmyeloid canceers |
what are the side effect of opervelkin? | cardiac dysrhythmias, fluid retention, allergic reactions, conjunctival infection, blurred vision, papilledema |
nursing interventions regarding oprelevkin are: | monitor vitals, fluid I&O, weight edema, dyspnea, monitor for allergic reaction, opthalmic manifestations |
contraindications of oprelevikin are: | myeloablative chemotherapy |
important administering techniques include what for oprelvekin? | subQ 4-6 hrs after chemotherapy, continue until platelets are 50,000 or > do not shake vial, use each vial only once, wait 2 days before chemo. |