Podcast
Questions and Answers
In which condition are amiodarone and dronedarone contraindicated?
In which condition are amiodarone and dronedarone contraindicated?
- Atrioventricular (AV) block (correct)
- Atrial fibrillation
- Sinus tachycardia
- Premature ventricular contractions
What is a critical nursing action to perform before administering a beta blocker?
What is a critical nursing action to perform before administering a beta blocker?
- Monitor urine output and electrolyte levels
- Assess respiratory rate and depth
- Evaluate patient's level of consciousness
- Check apical pulse and blood pressure (correct)
How do calcium channel blockers primarily affect myocardial contractility and the conduction system?
How do calcium channel blockers primarily affect myocardial contractility and the conduction system?
- Increase myocardial contractility and depress conduction
- Decrease myocardial contractility and depress conduction (correct)
- Decrease myocardial contractility and accelerate conduction
- Increase myocardial contractility and accelerate conduction
Which electrolyte imbalance is known to increase the risk of digoxin toxicity?
Which electrolyte imbalance is known to increase the risk of digoxin toxicity?
For which primary cardiac condition would epinephrine be administered?
For which primary cardiac condition would epinephrine be administered?
Which of the following is a physiological cause of sinus tachycardia?
Which of the following is a physiological cause of sinus tachycardia?
What is the primary pharmacological action of atropine sulfate?
What is the primary pharmacological action of atropine sulfate?
Dopamine is contraindicated in patients taking which class of medications?
Dopamine is contraindicated in patients taking which class of medications?
What is the typical atrial rate observed in atrial flutter?
What is the typical atrial rate observed in atrial flutter?
Which ECG finding is characteristic of atrial flutter?
Which ECG finding is characteristic of atrial flutter?
What distinguishes sinus bradycardia in athletes from other cases?
What distinguishes sinus bradycardia in athletes from other cases?
What is the primary treatment goal for atrial flutter?
What is the primary treatment goal for atrial flutter?
Which medication class is commonly used to control the ventricular rate in atrial flutter?
Which medication class is commonly used to control the ventricular rate in atrial flutter?
Which of the following is NOT a characteristic of sinus bradycardia?
Which of the following is NOT a characteristic of sinus bradycardia?
If a patient with atrial flutter has a normal ventricular rate, what is the typical clinical presentation?
If a patient with atrial flutter has a normal ventricular rate, what is the typical clinical presentation?
A patient presents with a heart rate of 55 bpm, regular rhythm, and no other symptoms. What is the appropriate therapeutic measure?
A patient presents with a heart rate of 55 bpm, regular rhythm, and no other symptoms. What is the appropriate therapeutic measure?
How are premature atrial contractions (PACs) typically managed?
How are premature atrial contractions (PACs) typically managed?
Which symptom is NOT typically associated with symptomatic bradycardia?
Which symptom is NOT typically associated with symptomatic bradycardia?
What can frequent PACs indicate?
What can frequent PACs indicate?
What is the defining characteristic of sinus tachycardia?
What is the defining characteristic of sinus tachycardia?
If atropine is ineffective in treating symptomatic bradycardia, what is the next recommended step?
If atropine is ineffective in treating symptomatic bradycardia, what is the next recommended step?
What intervention is used for an unstable patient with atrial flutter and a rapid ventricular rate?
What intervention is used for an unstable patient with atrial flutter and a rapid ventricular rate?
Which medication is used to reduce the risk of blood clots in nonvalvular atrial fibrillation (AF)?
Which medication is used to reduce the risk of blood clots in nonvalvular atrial fibrillation (AF)?
What is the role of adenosine in treating supraventricular tachycardia?
What is the role of adenosine in treating supraventricular tachycardia?
What is the primary advantage of a transcutaneous pacemaker?
What is the primary advantage of a transcutaneous pacemaker?
Which type of pacemaker offers rate responsiveness based on the patient's activity level?
Which type of pacemaker offers rate responsiveness based on the patient's activity level?
How does a leadless pacemaker differ from traditional pacemakers?
How does a leadless pacemaker differ from traditional pacemakers?
What medical imaging technique guides the implantation of permanent pacemakers?
What medical imaging technique guides the implantation of permanent pacemakers?
What does a spike on an ECG indicate in a paced rhythm?
What does a spike on an ECG indicate in a paced rhythm?
Where is the generator of a permanent pacemaker typically implanted?
Where is the generator of a permanent pacemaker typically implanted?
What is the typical lifespan of a leadless pacemaker battery?
What is the typical lifespan of a leadless pacemaker battery?
What is the function of leads in a traditional pacemaker?
What is the function of leads in a traditional pacemaker?
What is the primary function of the heart's electrical conduction system?
What is the primary function of the heart's electrical conduction system?
An ECG primarily provides information about which aspect of the heart's function?
An ECG primarily provides information about which aspect of the heart's function?
What additional assessments are essential to confirm cardiac contraction and perfusion, alongside ECG readings?
What additional assessments are essential to confirm cardiac contraction and perfusion, alongside ECG readings?
Which components represent a complete cardiac cycle on an ECG?
Which components represent a complete cardiac cycle on an ECG?
What does an ECG recording essentially capture?
What does an ECG recording essentially capture?
What is the purpose of using different leads in an ECG?
What is the purpose of using different leads in an ECG?
On standard ECG graph paper, what is the time duration represented by one small square?
On standard ECG graph paper, what is the time duration represented by one small square?
How many small squares are contained within one large block on ECG graph paper?
How many small squares are contained within one large block on ECG graph paper?
Which of the following is a potential issue with pacemakers related to the heart's electrical activity?
Which of the following is a potential issue with pacemakers related to the heart's electrical activity?
What is the recommended patient positioning in cases of pacemaker failure to capture?
What is the recommended patient positioning in cases of pacemaker failure to capture?
Which ECG tracing displays a ventricular-only pacemaker?
Which ECG tracing displays a ventricular-only pacemaker?
Post-pacemaker implantation, which finding warrants immediate reporting to the healthcare provider?
Post-pacemaker implantation, which finding warrants immediate reporting to the healthcare provider?
Which activity restriction is typically advised after pacemaker implantation?
Which activity restriction is typically advised after pacemaker implantation?
Which device generally requires caution when used by a patient with a pacemaker?
Which device generally requires caution when used by a patient with a pacemaker?
Which device poses a potential risk to pacemaker function and requires careful consideration?
Which device poses a potential risk to pacemaker function and requires careful consideration?
What should a patient with a pacemaker do if they experience lightheadedness near an electromagnetic device?
What should a patient with a pacemaker do if they experience lightheadedness near an electromagnetic device?
Flashcards
Cardiac Conduction System
Cardiac Conduction System
The heart's electrical system that initiates impulses for contraction.
ECG
ECG
A recording of the electrical activity of the heart over time.
P wave, QRS complex, T wave
P wave, QRS complex, T wave
Three waveform indicators of heart cycle's electrical activity.
Mechanical cells
Mechanical cells
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Blood pressure measurement
Blood pressure measurement
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Rhythm changes
Rhythm changes
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12-lead ECG
12-lead ECG
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Small square on ECG graph
Small square on ECG graph
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Amiodarone
Amiodarone
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Dronedarone
Dronedarone
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Atropine Sulfate
Atropine Sulfate
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Beta Blockers
Beta Blockers
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Calcium Channel Blockers
Calcium Channel Blockers
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Digoxin
Digoxin
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Vasopressors
Vasopressors
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Sinus Tachycardia
Sinus Tachycardia
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Sinus Bradycardia
Sinus Bradycardia
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Signs of Symptomatic Bradycardia
Signs of Symptomatic Bradycardia
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Treatment for Symptomatic Bradycardia
Treatment for Symptomatic Bradycardia
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Dysrhythmia
Dysrhythmia
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Anticoagulants
Anticoagulants
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Adenosine
Adenosine
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Vitamin K (Reversal Agent)
Vitamin K (Reversal Agent)
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PACs
PACs
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Symptoms of PACs
Symptoms of PACs
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Beta blockers usage
Beta blockers usage
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Atrial Flutter
Atrial Flutter
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Causes of Atrial Flutter
Causes of Atrial Flutter
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Atrial Flutter Rules
Atrial Flutter Rules
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Symptoms of Atrial Flutter
Symptoms of Atrial Flutter
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Treatment for Atrial Flutter
Treatment for Atrial Flutter
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Temporary Pacemaker
Temporary Pacemaker
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Transcutaneous Pacemaker
Transcutaneous Pacemaker
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Permanent Pacemaker
Permanent Pacemaker
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Single-lead Pacemaker
Single-lead Pacemaker
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Dual-chamber Pacemaker
Dual-chamber Pacemaker
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Activity-responsive Pacemaker
Activity-responsive Pacemaker
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Leadless Pacemaker
Leadless Pacemaker
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Paced Rhythm on ECG
Paced Rhythm on ECG
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Failure to sense
Failure to sense
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Failure to pace
Failure to pace
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Failure to capture
Failure to capture
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Post-implant monitoring
Post-implant monitoring
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Activity restrictions
Activity restrictions
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Safe devices with pacemakers
Safe devices with pacemakers
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Caution devices
Caution devices
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Pacemaker identification card
Pacemaker identification card
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Study Notes
Cardiac Conduction System
- The heart's electrical system initiates impulses, causing heart muscle contraction.
- Electrical activity is visible on a cardiac monitor or ECG tracing.
- ECG activity doesn't confirm mechanical contraction, confirming perfusion is crucial.
- Blood pressure and peripheral pulses verify cardiac contraction and perfusion.
Cardiac Cycle
- The electrical cycle involves P wave, QRS complex, and T wave which represent atrial and ventricular depolarization/repolarization.
Electrocardiogram (ECG)
- ECGs visualize heart's electrical activity, offering various views (leads).
- A 12-lead ECG shows 12 different views of the heart's electrical activity.
- An 18-lead ECG presents 18 views.
- Continuous monitoring can use one or two leads; continuous 12-lead monitoring can also be done.
- Understanding normal heart rhythms and common arrhythmias are needed to identify abnormalities.
ECG Graph Paper
- ECG graph paper is calibrated in small squares.
- Each small square represents 0.04 seconds.
- Half square = 0.02 seconds.
- Waveform measurement is done horizontally (left to right) for time and vertically (amplitude) for height.
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