Podcast
Questions and Answers
In a sinus dysrhythmia, where does the impulse originate?
In a sinus dysrhythmia, where does the impulse originate?
- Ventricles
- AV node/junction
- Atria
- SA node (correct)
An underlying rhythm of AV blocks is always what?
An underlying rhythm of AV blocks is always what?
- Ventricular
- Atrial fibrillation
- Sinus (correct)
- Junctional
In rhythms originating in the AV junction, impulses originate where?
In rhythms originating in the AV junction, impulses originate where?
- Atria
- Close to the AV node (correct)
- Ventricles
- SA node
For a first-degree AV block, what is the status of the QRS?
For a first-degree AV block, what is the status of the QRS?
What happens to the PR interval in Wenckebach (Type I second-degree AV block)?
What happens to the PR interval in Wenckebach (Type I second-degree AV block)?
What is a key characteristic of the PR interval in Type II second-degree AV block?
What is a key characteristic of the PR interval in Type II second-degree AV block?
In third-degree AV block, what is the relationship between the R-R intervals?
In third-degree AV block, what is the relationship between the R-R intervals?
What is a common cause of junctional rhythms?
What is a common cause of junctional rhythms?
What is the typical rate for junctional rhythm?
What is the typical rate for junctional rhythm?
In junctional bradycardia, what is the heart rate?
In junctional bradycardia, what is the heart rate?
If a P wave precedes the QRS complex in Junctional Rhythms, what is the PR interval?
If a P wave precedes the QRS complex in Junctional Rhythms, what is the PR interval?
In accelerated junctional rhythm, what is the rate?
In accelerated junctional rhythm, what is the rate?
In junctional tachycardia, what is the rate?
In junctional tachycardia, what is the rate?
What is a potential cause of junctional tachycardia?
What is a potential cause of junctional tachycardia?
What best describes P waves in Junctional rhythms?
What best describes P waves in Junctional rhythms?
What is a rate for Junctional Bradycardia?
What is a rate for Junctional Bradycardia?
What can cause junctional bradycardia?
What can cause junctional bradycardia?
A PJC is also know as what?
A PJC is also know as what?
If a P wave precedes a QRS complex in a PJC, what will the PR be?
If a P wave precedes a QRS complex in a PJC, what will the PR be?
Underlying rhythms of AV blocks are always ___?
Underlying rhythms of AV blocks are always ___?
Typical causes of First Degree AV block is ____?
Typical causes of First Degree AV block is ____?
What describes the adverse effects of First Degree AV block?
What describes the adverse effects of First Degree AV block?
What type of AV block has groups of beats and pauses?
What type of AV block has groups of beats and pauses?
What causes Type I Second Degree AV Block (Wenckebach)?
What causes Type I Second Degree AV Block (Wenckebach)?
In Third Degree AV Block, which of these is the rate for the atria?
In Third Degree AV Block, which of these is the rate for the atria?
Flashcards
The Word on AV Blocks
The Word on AV Blocks
In AV blocks, the underlying rhythm is always sinus, meaning P waves are sinus P waves.
Problem in AV Blocks
Problem in AV Blocks
Complete or partial interruption in impulse transmission to the ventricles, occurring at the AV node or bundle branches.
1st Degree AVB
1st Degree AVB
Differentiation of AV Blocks: 1st degree AVB has no dropped QRS and a PR >0.20 secs.
Wenckebach
Wenckebach
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Type II AVB
Type II AVB
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Rhythms Originating in AV Junction
Rhythms Originating in AV Junction
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Impulse Origin Areas
Impulse Origin Areas
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Junctional Rhythm
Junctional Rhythm
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Junctional Rhythm Causes
Junctional Rhythm Causes
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Adverse Effects of Junctional Rhythm
Adverse Effects of Junctional Rhythm
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Treatment for Junctional Rhythm
Treatment for Junctional Rhythm
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Premature Junctional Complex (PJC)
Premature Junctional Complex (PJC)
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Causes of a PJC
Causes of a PJC
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Treatment for PJC
Treatment for PJC
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Junctional Tachycardia
Junctional Tachycardia
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Causes of Type I Second Degree AV Block
Causes of Type I Second Degree AV Block
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Study Notes
- The test covers all types of dysrhythmias from sinus through ventricular dysrhythmias.
- Questions may be multiple choice about the characteristics of a dysrhythmia.
Example Question
- In a sinus dysrhythmia, the impulse originates in the SA node
Strip interpretation format
- The format is the same as ECG Exam 1
- Differentials include BBB, vs ventricular vs pacemaker rhythm
- It is important to identify the spike and chamber pacing
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