NUR 325 exam 4 Flashcards
biggest concern with anticoagulants
bleeding
how to monitor for bleeding
H&H, vitals (increased HR, decreased BP)
anticoagulants moa
inhibits action or formation of clotting factors
prevents clots
antiplatelet moa
inhibit platelet aggregation
prevents the platelet plug from forming
antiplatelet indications
prevent stoke and heart attack
heparin moa
activates antithrombin
inactivates thrombin and factors Xa
inhibits fibrin formation
heparin indication
prompt anticoagulation activity
(stoke, pe, massive dot, open heart surgery, dialysis, disseminated intravascular coagulation)
heparin side effects
bleeding, hematoma, thrombocytopenia
how we dose heparin
based on clotting time labs (anti-Xa and aPTT)
heparin routes
IV or subQ
heparin onset
quickly
heparin antidote
protamine sulfate
heparin nursing considerations
caution in spinal epidural anesthesia
enoxaparin class
low molecular weight heparin
enoxaparin moa
only inactivates factor Xa (not thrombin)
enoxaparin indications
prophylaxis and treatment
enoxaparin nursing considerations
don’t need labs
slower onset, longer 1/2 life
leave air bubble in syringe
caution in spinal epidural anesthesia
enoxaparin side effects
bleeding, thrombocytopenia, HIT
enoxaparin route
subQ
can be given at home
enoxaparin antidote
protamine
warfarin class
vitamin k inhibitor
warfarin moa
prevents synthesis of 4 coagulation factors (VII, IX, X, prothrombin)
warfarin indications
prevent DVT/VTE/PE, thrombotic events with afib, heart valves, MI, TIA
warfarin side effects
bleeding, lethargy, muscle pain, purple toes
warfarin nursing considerations
given PO at 5pm
hold before surgery
many drug, alcohol, food (vitamin K) interactions
warfarin onset
24hr onset, 2-5 day duration
warfarin lab monitoring
PT/INR
normal range- 1
therapeutic for warfarin- 2-3.5
monitor monthly after therapeutic
heparin induced cytopenia
decreased platelet and increased thrombi
caused by antibody development
monitor platelet labs
stop heparin if platelet <100,000
apixaban / rivaroxaban moa
directly inhibits factor Xa
apixaban / rivaroxaban indications
prevents strokes with afib
postop thromboprophylaxis
DVT/PE
apixaban / rivaroxaban side effects
bleeding, hematoma, dizziness, rash, gi upset, peripheral edema
apixaban / rivaroxaban bbw
spinal hematoma with epidural
risk of thrombosis if stopped abruptly
apixaban / rivaroxaban nursing considerations
many drug interactions
no routine monitoring
monitor liver function
apixaban / rivaroxaban antidote
andexxa
aspirin moa
blocks prostaglandin synthesis through cox enzyme pathway
prevents platelet aggregation
aspirin indication
prevent MI / ischemic stoke
aspirin side effects
bleeding, nausea, vomiting, drowsiness, confusion
aspirin nursing considerations
chew baby aspirin for acute event
Reye’s syndrome (not for children with viruses)
aspirin antidote
DDAVP
clopidogrel / ticagrelor class
anti platelet ADP inhibitor
clopidogrel / ticagrelor moa
alter platelet membrane so it can’t receive the signal to aggregate
clopidogrel / ticagrelor indications
risk of stroke, prophylaxis of TIA, post MI
clopidogrel / ticagrelor side effects
chest pain, edema, flu-like symptoms, gi upset, rash, itching, nosebleed
clopidogrel bbw
increases cardiovascular event risk with genetic abnormalities
ticagelor bbw
risk for bleeding with aspirin over 100mg
clopidogrel nursing consideration
decreased effectiveness with certain other drugs
clopidogrel / ticagrelor antidote
DDAVP or platelet transfusion
argatroban / bivalrudin class
direct thrombin inhibitors
argatroban / bivalrudin moa
inhibit thrombin (factor IIa)
argatroban / bivalrudin indications
treat HIT, procedures with high risk for HIT
argatroban / bivalrudin side effect
bleeding
argatroban / bivalrudin route
IV only
argatroban nursing considerations
not for patients with hepatic dysfunction
argatroban / bivalrudin labs
monitor anti-Xa, H&H, platelet
glucocorticoids
hydrocortisone, prednisone, dexamethasone
glucocorticoids moa
mimic cortisol
dexamethasone use
checks function of adrenal gland
glucocorticoids acute side effects
increased intraocular pressure
fluid retention
increased bp
mood swings
weight gain
cataracts
high blood sugar
glucocorticoids chronic side effects
risk of infection
osteoporosis
suppressed adrenal gland
slowed wound healing
glucocorticoids nursing considerations
don’t stop abruptly
take at same time throughout the day
monitor weight and blood sugar
fludrocortisone class
mineralocorticoids