NSG 360: Antidysrhythmic Drugs Exam #3
Questions and Answers with Verified
Solutions | Latest Updated 2026
What are antidysrhythmic drugs abnormal heart rhythms resulting from
used irregular
to treat? electrical activity in the heart
What is the electrical sequence of 1. SA node (60-100 bpm)
the heart? 2. AV node (40-60 bpm)
3. Bundle of His
4. Purkinje Fibers (20-40 bpm)
What are two common Atrial Fibrillation and Paroxysmal
dysarhythmias? Supraventricular
Tachycardia
What is atrial fibrillation described rapid atrial contractions that incompletely
as? pump
blood into the ventricles.
- It can cause blood clots, which can cause
a
stroke or heart attack.
What's the difference between aflutter is regular and afib is irregular.
aflutter and afib?
, A 1st degree AV block causes causes a prolonged impulse conduction
what? time from
the atria to the ventricles.
- due to a delay in the AV node.
- prolonged time from P wave to QRS.
- Treatment of a 1st degree AV block is
usually not
necessary, but monitor heart rate.
What is a 2nd degree AV block Mobitz I or Wenckebach
type 1
known as?
A 2nd degree AV block type 1 Causes a progressive increase in the
(Mobitz I) causes what? impulse
conduction times between the atria and
ventricles
until one impulse fails to conduct.
- no full beat!
- usually are temporary and don't require
treatment.
- Atropine can be used if CO is insufficient.
A 2nd degree AV block type 2 is Mobitz II
also
known as what?
Questions and Answers with Verified
Solutions | Latest Updated 2026
What are antidysrhythmic drugs abnormal heart rhythms resulting from
used irregular
to treat? electrical activity in the heart
What is the electrical sequence of 1. SA node (60-100 bpm)
the heart? 2. AV node (40-60 bpm)
3. Bundle of His
4. Purkinje Fibers (20-40 bpm)
What are two common Atrial Fibrillation and Paroxysmal
dysarhythmias? Supraventricular
Tachycardia
What is atrial fibrillation described rapid atrial contractions that incompletely
as? pump
blood into the ventricles.
- It can cause blood clots, which can cause
a
stroke or heart attack.
What's the difference between aflutter is regular and afib is irregular.
aflutter and afib?
, A 1st degree AV block causes causes a prolonged impulse conduction
what? time from
the atria to the ventricles.
- due to a delay in the AV node.
- prolonged time from P wave to QRS.
- Treatment of a 1st degree AV block is
usually not
necessary, but monitor heart rate.
What is a 2nd degree AV block Mobitz I or Wenckebach
type 1
known as?
A 2nd degree AV block type 1 Causes a progressive increase in the
(Mobitz I) causes what? impulse
conduction times between the atria and
ventricles
until one impulse fails to conduct.
- no full beat!
- usually are temporary and don't require
treatment.
- Atropine can be used if CO is insufficient.
A 2nd degree AV block type 2 is Mobitz II
also
known as what?
