Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.
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Transcript of Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.
![Page 1: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/1.jpg)
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Fast & Easy ECGs – A Self-Paced Learning Program
Junctional Dysrhythmias
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Junctional Dysrhythmias
• Originate in AV junction (area around AV node and bundle of His)
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Junctional Dysrhythmias
• Key characteristics– P’ waves may be inverted with a short P’R
interval, absent (as they are buried by the QRS complex), or follow QRS complexes
– QRS complexes usually normal unless there is an intraventricular conduction defect, aberrancy or preexcitation
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Premature Junctional Complex (PJC)
• Single early electrical impulse that arises from the AV junction
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Premature Junctional Complex
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Premature Junctional Complex
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Junctional Escape Rhythm
• Arises from AV junction at rate of 40 to 60 BPM
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Junctional Escape Rhythm
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Junctional Escape Rhythm
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Accelerated Junctional Rhythm
• Arises from AV junction at rate of 60 to 100 BPM
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Accelerated Junctional Rhythm
![Page 12: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/12.jpg)
Accelerated Junctional Rhythm
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Junctional Tachycardia
• Fast ectopic rhythm that arises from bundle of His at rate of 100 to 180 BPM
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Junctional Tachycardia
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Junctional Tachycardia
![Page 16: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/16.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
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Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 18: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/18.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 19: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/19.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 20: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/20.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 21: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/21.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 22: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/22.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 23: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/23.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 24: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/24.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 25: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/25.jpg)
Practice Makes Perfect
• Determine the type of dysrhythmia
I
![Page 26: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/26.jpg)
Summary
• Junctional rhythms originate in the AV junction.
• Impulses originating in the AV junction travel upward and cause backward or retrograde depolarization of the atria resulting in inverted P’ waves in lead II with a short P’R interval, absent P waves or P waves that follow the QRS complexes.
• With junctional dysrhythmias the QRS complexes are usually normal unless there is an intraventricular conduction defect, aberrancy or preexcitation.
![Page 27: Q I A 10 Fast & Easy ECGs – A Self-Paced Learning Program Junctional Dysrhythmias.](https://reader031.fdocuments.in/reader031/viewer/2022013004/56649e905503460f94b95678/html5/thumbnails/27.jpg)
Summary
• A premature junctional complex (PJC) is a single early electrical impulse that arises from the AV junction.
• Junctional escape rhythm arises from the AV junction at a rate of 40 to 60 beats per minute.
• Accelerated junctional rhythm arises from the AV junction at a rate of 60 to 100 beats per minute.
• Junctional tachycardia is a fast ectopic rhythm that arises from the bundle of His at a rate of between 100 and 180 beats per minute.