Anticoagulants and Respiratory Flashcards
atorvastatin (Lipitor) MOA
leads to a fall in hepatic cholesterol levels produces a
compensatory upregulation in the number of LDL
receptors on hepatocytes with increased
clearance of circulating LDL cholesterol
atorvastatin (Lipitor) indications
- hypercholesterolemia
- primary and secondary CV prevention
- protection against MI and stroke in DM pts
- post MI therapy
- type 2 DM
atorvastatin (Lipitor) AEs
- myopathy
- rhabdomyolysis
- hepatotoxicity
- teratogenicity
atorvastatin (Lipitor) nursing considerations
- evening admin preferred
- monitor liver function and CK
- pt education: contraception and myopathy risks
colesevelam (Welchol) MOA
binds to bile acids secreted into small intestine to prevent reabsorption, eventually increases # of LDL cholesterol receptors for hepatic uptake
colesevelam (Welchol) indications
adjunctive therapy in hypercholesterolemia often with statins
colesevelam (Welchol) AEs
nausea, constipation, indigestion, bloating
colesevelam (Welchol) nursing considerations
- administer other meds 1 hours before or 4 hours after
- increase fluid and fiber intake prior to laxative admin
- can interact with other common meds (thiazides, digoxin, and warfarin)
gemfibrozil (Lopid) MOA
activates PPAR alpha to accelerate clearance of VLDLs to reduce TG levels, raises HDL
gemfibrozil (Lopid) indications
hypertriglycerdiemia
gemfibrozil (Lopid) AEs
- rash
- GI upset
- gallstones
- myopathy/rhabdomyolysis
- hepatotoxicity
gemfibrozil (Lopid) nursing considerations
- can increase anticoagulant effects in pts on warfarin (monitor for bleeding and INR)
- diet modification
- administer 30 minutes before morning and evening meals
- educate pts on myopathy risk
aspirin MOA
antiplatelet medication that irreversibly inhibits cyclooxygenase to prevent TXA2 synthesis needed to promote platelet activation
aspirin indications
- ischemic CVA and stroke
- angina and MI-related events
aspirin AEs
- bleeding
- salicylism (aspirin toxicity)
aspirin nursing considerations
- educate and monitor for signs of bleeding
- educate on other sources of aspirin
- give PPI if GI bleeding occurs
- stop med 7-10 days before surgery
aspirin dosing
- 81mg = helps prevent CV effects
- 325mg = helps in initial treatment of CV events
clopidogrel (Plavix) MOA
irreversibly prevents ADP- stimulated platelet aggregation and blood clot formation
clopidogrel (Plavix) indications
- helps reduce thrombotic events in pts w/ acute coronary syndrome
- prevents blockage of coronary artery stents
clopidogrel (Plavix) AEs
bleeding and TTP
clopidogrel (Plavix) nursing considerations
- educate and monitor for signs of bleeding
- give PPI if GI bleeding occurs
- education on med use in setting of elective surgery
abciximab (ReoPro) MOA
glycoprotein Ilb/Illa receptor antagonist med that causes reversible blockade of platelet receptors to inhibit the final step of platelet aggregation
abciximab (ReoPro) indications
- ACS
- PCI
- Non-STEMI
abciximab (ReoPro) AEs
bleeding
abciximab (ReoPro) nursing considerations
- post-procedure cardiac cath monitoring
- monitor for s/s of bleeding
heparin MOA
antithrombin activating anticoagulant that enhances the activity of antithrombin to indirectly inhibit activity of thrombin and factor Xa
heparin indications
- DVT and PE
- open heart surgery and renal dialysis
- low dose = DVT prophylaxis
- DIC
- anticoagulation during pregnancy
heparin AEs
- bleeding
- HIT
- severe neuro injury if given to spine/epidural pts
heparin nursing considerations
- educate/monitor for s/s of bleeding
- monitor aPTT and CBC
- antidote is protamine sulfate
enoxaparin (Lovenox) MOA
LMWH that enhances activity of antithrombin to preferentially indirectly inhibit activity of thrombin factor Xa with some inhibition on thrombin
enoxaparin (Lovenox) indications
- DVT and PE
- DVT prophylaxis after THA, TKA, and abd sx
- off-label = DVT prophylaxis after surgery and spinal injury
enoxaparin (Lovenox) AEs
- bleeding
- HIT
- severe neuro injury if given to spinal/epidural pts
enoxaparin (Lovenox) nursing considerations
- educate and monitor for s/s of bleeding
- monitor CBC
- antidote = protamine sulfate
warfarin (Coumadin) MOA
vitamin K antagonist med that suppresses production of factors VII, IX, X, and prothrombin