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A fib
1. What is A-Fib
tion
tanding of Atrial Fibrilla
A simple Unders
By Devon Lewis RN, BSN
2. Wh at is A-Fib?
● A-fib is a heart
condition that
affects many people.
● It is an irregular
heart rhythm that
can have serious
consequences if not
addressed or
regulated.
3. electrical conduction
The heart's
● In a normal heart
rhythm the Sinoatrial
(SA)node produces an
electrical current.
● This current
stimulates the heart
and causes it to
contract and beat.
4. electrical conduction
The heart's
● The SA node
controls the heart
to beat 60-100
beats/min.
6. S ome Cause s of A-Fib
● Heart Attack
● High Blood Pressure
● Hyperactive Thyroid
● Heart Defects
● Sick Sinus Syndrome
● Viral infection
● Surgery
● Stimulants
● Sleep Apnea
● Heart Defects
Source Mayo Clinic
7. The onset of A-Fib
● The heart's
electrical system
goes haywire from
a condition priorly
mentioned.
● The electrical
signal comes from
a place above the
SA node.
8. The onset of A-Fib
● The atrium starts
to quiver from this
electrical
disturbance.
● The heart rate
becomes irregular.
9. The onset of A-Fib
● The heart rate can
become 120 even
up above 170
beats/min.
● The SA node is no
longer in control of
regulating the
heart rate.
10.
11. The onset of A-Fib
● With a rapid heart
rate one can
become short of
breath and light
headed and
hypotension (low
blood pressure).
12. A-Fib untreated
● Can cause blood clots
to form because
blood in the atrium
becomes stagnant.
● Blood from the left
ventricle can shoot a
clot into the brain
causing a stroke (see
next slide).
13.
14. A -Fib untrea ted cont.
● A-fib untreated can
also cause heart
failure.
15. A-Fib treatments
● Cardioversion
(shocking the heart)
● Medications to
control rate and
rhythm cardizem,
amiodarone, etc.
● Sometimes the
heart converts to
regular rhythm on
its own.
16. -Fib treatm ents cont.
A
● The use of
anticoagulants to
prevent blood
clots, such as
Coumadin or
Pradaxa
17. -Fib treatm ents cont.
A
● If a heart rate can
not be controlled
by medications an
ablation (burning
of) SA node and
placement of a
pacemaker may be
necessary.
18. The End.
● This is just for
general
educational
information.
