Podcast
Questions and Answers
What is the typical heart rate range for Sinus Tachycardia?
What is the typical heart rate range for Sinus Tachycardia?
- 60-100 bpm
- 100-160 bpm (correct)
- Below 40 bpm
- 40-60 bpm
In a normal heart rhythm, which node initiates the electrical impulse?
In a normal heart rhythm, which node initiates the electrical impulse?
- Purkinje Fibers
- Sinus Node (correct)
- AV Node
- Bundle of His
Which part of the heart is responsible for the QRS complex?
Which part of the heart is responsible for the QRS complex?
- Atria
- AV Node
- Sinus Node
- Ventricle (correct)
What is the correct sequence of the electrical impulse in Sinu rhythm?
What is the correct sequence of the electrical impulse in Sinu rhythm?
During sinus tachycardia, what is the typical appearance of the P waves in relation to the QRS complexes?
During sinus tachycardia, what is the typical appearance of the P waves in relation to the QRS complexes?
Following the normal sequence, after the AV node, where does the electrical impulse travel?
Following the normal sequence, after the AV node, where does the electrical impulse travel?
In the sequence of sinus rhythm, which comes first?
In the sequence of sinus rhythm, which comes first?
Where does the electrical impulse originate in atrial rhythms?
Where does the electrical impulse originate in atrial rhythms?
During sinus tachycardia, what is the appearance of the P waves?
During sinus tachycardia, what is the appearance of the P waves?
During sinus tachycardia, what is the range for the PR interval?
During sinus tachycardia, what is the range for the PR interval?
Which structure is located between the right and left atria?
Which structure is located between the right and left atria?
Following the AV node in normal sinus rhythm, where does the electrical impulse travel next?
Following the AV node in normal sinus rhythm, where does the electrical impulse travel next?
In atrial rhythms, where does the electrical impulse originate?
In atrial rhythms, where does the electrical impulse originate?
In the heart's electrical conduction system, what follows the bundle branches?
In the heart's electrical conduction system, what follows the bundle branches?
Which node is the natural pacemaker of the heart?
Which node is the natural pacemaker of the heart?
What part of the heart is activated immediately after the atria in sinus rhythm?
What part of the heart is activated immediately after the atria in sinus rhythm?
In atrial rhythms, where does the electrical impulse travel after the atrium?
In atrial rhythms, where does the electrical impulse travel after the atrium?
What is the normal appearance of P waves during Sinus Tachycardia?
What is the normal appearance of P waves during Sinus Tachycardia?
What does 'HR' stand for?
What does 'HR' stand for?
What part of the heart does the electrical impulse reach after the Bundle of His?
What part of the heart does the electrical impulse reach after the Bundle of His?
Which heart structure comes immediately before the ventricle in sinus rhythm?
Which heart structure comes immediately before the ventricle in sinus rhythm?
What heart rate defines sinus tachycardia?
What heart rate defines sinus tachycardia?
Which of these is true regarding sinus tachycardia?
Which of these is true regarding sinus tachycardia?
In atrial rhythms, where does the electrical impulse travel immediately after the atrium?
In atrial rhythms, where does the electrical impulse travel immediately after the atrium?
What part of the heart is activated directly by the Sinus Node in Sinus Rhythm?
What part of the heart is activated directly by the Sinus Node in Sinus Rhythm?
Which of the following is the correct flow of electrical activity in Atrial Rhythms?
Which of the following is the correct flow of electrical activity in Atrial Rhythms?
In Sinus Tachycardia, what is the typical heart rate range?
In Sinus Tachycardia, what is the typical heart rate range?
What does 'R' stand for in the context of Sinus Tachycardia characteristics?
What does 'R' stand for in the context of Sinus Tachycardia characteristics?
Which of the following directly follows the AV node in both Sinus and Atrial Rhythms?
Which of the following directly follows the AV node in both Sinus and Atrial Rhythms?
What is the typical heart rate range for someone experiencing Sinus Tachycardia?
What is the typical heart rate range for someone experiencing Sinus Tachycardia?
During Sinus Tachycardia, what is the typical appearance of the P waves?
During Sinus Tachycardia, what is the typical appearance of the P waves?
Where does the electrical impulse travel immediately after the Atrium in Atrial Rhythms?
Where does the electrical impulse travel immediately after the Atrium in Atrial Rhythms?
In the heart, what is the function of the Bundle Branches?
In the heart, what is the function of the Bundle Branches?
What is the next step in Atrial Rhythms after the Atrium?
What is the next step in Atrial Rhythms after the Atrium?
What is the heart rate range that defines sinus tachycardia?
What is the heart rate range that defines sinus tachycardia?
In sinus rhythm, which structure is activated directly by the Sinus Node?
In sinus rhythm, which structure is activated directly by the Sinus Node?
In the heart's electrical conduction sequence during sinus rhythm, what follows the AV node?
In the heart's electrical conduction sequence during sinus rhythm, what follows the AV node?
Where does the electrical impulse originate in sinus rhythm?
Where does the electrical impulse originate in sinus rhythm?
What is the first location the electrical impulse reaches after the Sinus Node in Sinus Rhythm?
What is the first location the electrical impulse reaches after the Sinus Node in Sinus Rhythm?
Which range defines the heart rate during Sinus Tachycardia?
Which range defines the heart rate during Sinus Tachycardia?
What is the normal appearance of the P waves in Sinus Tachycardia?
What is the normal appearance of the P waves in Sinus Tachycardia?
What is the regular PR interval duration during Sinus Tachycardia?
What is the regular PR interval duration during Sinus Tachycardia?
Flashcards
Atria
Atria
Upper chambers of the heart that receive blood.
Sinus Node
Sinus Node
The heart's natural pacemaker, initiating electrical impulses.
AV Node
AV Node
Relays electrical signals from the atria to the ventricles.
Purkinje Fibers
Purkinje Fibers
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Sinus Tachycardia
Sinus Tachycardia
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Sinus Rhythm Pathway
Sinus Rhythm Pathway
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Atrial Rhythm Pathway
Atrial Rhythm Pathway
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Interatrial Tracts
Interatrial Tracts
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Bundle Branches
Bundle Branches
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Bundle of His
Bundle of His
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QRS Complex
QRS Complex
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Sinus Rhythm
Sinus Rhythm
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Atrial Rhythm
Atrial Rhythm
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P Waves (in Sinus Tachycardia)
P Waves (in Sinus Tachycardia)
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PR Interval
PR Interval
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Heart Rate in Sinus Tachycardia
Heart Rate in Sinus Tachycardia
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Rhythm in Sinus Tachycardia
Rhythm in Sinus Tachycardia
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P Wave Appearance (Sinus Tachycardia)
P Wave Appearance (Sinus Tachycardia)
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PR Interval (Sinus Tachycardia)
PR Interval (Sinus Tachycardia)
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Ventricular Activity (QRS)
Ventricular Activity (QRS)
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Purkinje Fibers Function
Purkinje Fibers Function
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Sinus Tachycardia Characteristics
Sinus Tachycardia Characteristics
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Interatrial Tract Function
Interatrial Tract Function
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Bundle Branch Function
Bundle Branch Function
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Bundle of His Function
Bundle of His Function
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Atria Definition
Atria Definition
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Sinus Node Function
Sinus Node Function
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AV Node Function
AV Node Function
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Sinus Tachycardia HR
Sinus Tachycardia HR
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What are Atria?
What are Atria?
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What is the Sinus Node?
What is the Sinus Node?
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What is the AV Node?
What is the AV Node?
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What are Purkinje Fibers?
What are Purkinje Fibers?
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What is the Bundle of His?
What is the Bundle of His?
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Study Notes
Heart Anatomy and Electrical Pathway:
- The sinus node is in the heart
- Electrical impulses go from the sinus node to the atrium
- Impulses then move to the AV node, and further to the ventricle (QRS complex)
- The interatrial tracts, bundle of His, bundle branches, and purkinje fibers contribute to this process
Sinus Rhythms Overview:
- Normal sinus rhythm starts at the sinus node, goes to the atrium, then the AV node, and finally to the ventricle
- Atrial rhythms start in the atrium and go to the AV node before reaching the ventricle
Sinus Rhythm:
- A normal heart rate is between 60-100 bpm
- The rhythm is regular
- P-waves are upright, matching, and married to the QRS complex
- The PR interval is constant and measures between 0.12-0.20 seconds
- The QRS interval is less than 0.12 seconds
Sinus Bradycardia:
- The heart rate is less than 60 bpm
- The rhythm is regular
- P-waves are upright, matching, and married to the QRS complex
- The PR interval is constant and spans 0.12-0.20 seconds
- The QRS interval is less than 0.12 seconds
Sinus Tachycardia:
- The heart rate ranges from 100-160 bpm
- The rhythm is regular
- P-waves are upright and married to the QRS complex
- The PR interval is constant and measures 0.12-0.20 seconds
- The QRS interval is less than 0.12 seconds
Premature Atrial Complex (PAC):
- The heart rate can be any rate
- The rhythm is generally regular but interrupted by the premature beat
- P-waves are shaped differently compared to those from the sinus node and are premature
- The PR interval measures between 0.12-0.20 seconds
- The QRS interval is less than 0.12 seconds
Paroxysmal Atrial Tachycardia (PAT):
- The heart rate is between 160-250 bpm
- The rhythm is regular
- P-waves are different from sinus P waves
- The PR interval spans 0.12-0.20 seconds
- The QRS interval is less than 0.12 seconds
Atrial Flutter:
- The atrial heart rate is rapid, ranging from 250-350 bpm
- The rhythm can be either regular or irregular
- P-waves are absent; instead, flutter waves are present
- The PR interval is not applicable
- The QRS interval is less than 0.12 seconds, with common ratios like 4:1, 3:1, or 2:1
Atrial Fibrillation:
- The atrial heart rate is rapid, varying from 350-700 bpm
- The rhythm is irregularly irregular
- P-waves are absent, showing a baseline or flat line (wavy)
- The PR interval is not applicable
- The QRS interval is less than 0.12 seconds
Supraventricular Tachycardia (SVT):
- The heart rate is 130 bpm or higher
- The rhythm is regular
- P-waves are not visible
- The PR interval is not measurable
- The QRS interval is very narrow, less than 0.12 seconds
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Description
This lesson explains different cardiac rhythms including sinus rhythm, sinus bradycardia, sinus tachycardia, premature atrial complex and paroxysmal atrial tachycardia. Each rhythm is defined by heart rate, regularity, P waves, PR interval, and QRS duration. It also includes information about the characteristics of each.
