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Updated Final Exam Dysrhythmia 2024 Review Questions and Answers 100% Pass | Graded A+
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Updated Final Exam Dysrhythmia 2024Review Questions and Answers 100%
Pass | Graded A+
Administrator [Date] [Course title]
,1. First De- prolonged PR interval-measures the time
gree required for an impulse to travel from the SA to
Atrioven- the AV node. PRI longer than 0.20
tricular Heart
Block
progressive prolongation of PRI, gradual
2. Second degree shortening of R to R intervals
AV block Type
I
P wave not followed by a QRS wave
a pause with an R to R interval less than the sum
of two P to P intervals
first conducted atrial impulse after the pause
shows a shorter or normal PRI
Rhythm: ventricular irregular; atrial
regular Rate: atrial rate >
3. Second Degree
ventricular rate
AV Block Type
P waves: P waves may not be followed by QRS
2
PRI: WNL or prolonged ; PRI before and after a
blocked P waves are constant.
QRS duration: WNL; greater than 0.11 sec block
occurs below the bundle.
rhythm: regular
Rate: usually
4. characteristics
WNL
of first degree
P waves: one positive before each QRS
AV block
complex PRI: prolonged
QRS: normal
- normal in hx of cardiac disease especially
5. causes of first
athletes
degree AV
block - Acute MI
- acute mydocarditis or endocarditis
- cardiomyopathy
,- degenerative
fibrosis and
sclarosis
- drugs
- hyperkalemia
, - increased vagal tone
- ischemia or injury to the AV node or AV bundle
- rheumatic heart disease
- valvular heart disease
6. what causes RCA, athletes, aortic valve disease, atrial septal
sec- ond degree defects, meds, mitral valve prolapse, rheumatic
AV block type I heart disease.
7. what do i do
about second atropine for bradycardia.
de- gree AV
block type I
8. second degree
AV block type MI is related to conduction effects, acute
II causes myocarditis, aortic valve disease,
cardiomyopathy, fibrosis of the con- duction
9. second degree system, rheumatic heart disease
AV block type
II s/s depends on the ventricular rate: if normal it is
asympto- matic. could progress to third degree,
pacemakers, ECG, pulse ox, obtain VS, administed
oxygen, est IV access
10. third
degree temporary or permanent pacing
heart block
Rhythm: ventricular regular; atrial regular, no
relationship is present
Rate: the atrial rate is greater than the
ventricular and the ventricular rate is determined
by the escape
P waves: normal in size and shape; not followed
by a QRS complex
PRI: no PRI bc they are not related
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