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A-fib
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Risk factors for A-fib
age
obesity
Caucasian
excessive alcohol
Are there P waves? Is the QRS pattern normal?
no P waves
irregular QRS
Why is there no P wave
the atria are not contracting, p wave is the depolarization of the atria
Why is A-fib a potential for CVA and PE
since atria aren't contracting blood pools and can lead to coagulation
Why does CO decrease
increased rate
decreased filling time
decreased stroke volume(no atria "kick"/contraction)
Decreased CO can lead to what complications
HF
hypotension
perfusion problems
What are the S/S of A-fib
fatigue/weak
SOB
dizzy/syncope
hypotension
anxiety
palpitaion
chest pain
asymptomatic
How do we treat A-fib
anticoagulants
anti-platelets
Anti-dysrhythmics
cardioversion
ablation/maze
bi-ventricular pacing
What types of anticoagulants are used to treat A-fib and why
Heparin
Enoxaparin(Lovenox)-LWMH
warfarin(coumadin)-decrease vitamin K intake
pooling bllod in atria/ prevent PE/CVA
Which anticoagulant is a bridge until the other starts working
Lovenox bridge until coumadin is effective
What types of antiplatelets are used
ASA
clopidogrel(Plavix)
What anti-dysrhythmics are used
Ones that slow HR
CA++ channel blockers- diltiazem(Cardizem)
Amidarone(Cordarone)
Beta-blockers- metoprolol(Lopressor)
Digoxin(Lanoxin)
What is cardioversion
an attempt to "reset" heart rhythm
When can cardioversion be done w/out using anticoagulants
If the pt knows the went into A-fib in the last 48 hrs because the blood hasn't had time to coagulate yet
What is ablation/maze
block extra electrical impulses so only SA impulses travel to AV
What is bi-ventricular pacing
implanted atrial defibrillator that sends shock to the heart when arrhythmia occur
Author
tville01
ID
198357
Card Set
A-fib
Description
A-fib
Updated
2013-02-06T13:01:53Z
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