Podcast
Questions and Answers
What is the normal heart rate in beats per minute?
What is the normal heart rate in beats per minute?
- 100-120
- 120-140
- 40-60
- 60-100 (correct)
What is the duration of a normal PR interval?
What is the duration of a normal PR interval?
- 0.20-0.25 second
- 0.05-0.10 second
- 0.12-0.20 second (correct)
- 0.10-0.15 second
What is the term used to describe an abnormal heart rhythm?
What is the term used to describe an abnormal heart rhythm?
- Tachycardia
- Dysrhythmia
- Cardiac arrest
- Arrhythmia (correct)
What is the primary cause of sinus block?
What is the primary cause of sinus block?
Which of the following is a cause of arrhythmias?
Which of the following is a cause of arrhythmias?
What should be treated in a patient with an arrhythmia?
What should be treated in a patient with an arrhythmia?
What is the characteristic of the P waves in a sinus block?
What is the characteristic of the P waves in a sinus block?
What is the treatment for an asymptomatic patient with sinus block?
What is the treatment for an asymptomatic patient with sinus block?
What is the term for the absence of cardiac electrical activity?
What is the term for the absence of cardiac electrical activity?
What is the difference between sinus pause and sinus arrest?
What is the difference between sinus pause and sinus arrest?
What is the clinical significance of frequent or prolonged episodes of sinus block?
What is the clinical significance of frequent or prolonged episodes of sinus block?
What is sick sinus syndrome characterized by?
What is sick sinus syndrome characterized by?
What is the pacemaker site in sick sinus syndrome?
What is the pacemaker site in sick sinus syndrome?
What is the normal PR interval in sick sinus syndrome?
What is the normal PR interval in sick sinus syndrome?
What is the treatment for sinus pause or sinus block if atropine fails?
What is the treatment for sinus pause or sinus block if atropine fails?
What is the danger of complete cessation of SA node activity?
What is the danger of complete cessation of SA node activity?
What is the primary concern when the SA node activity ceases completely?
What is the primary concern when the SA node activity ceases completely?
What is the primary focus when treating a patient with cardiac arrhythmias?
What is the primary focus when treating a patient with cardiac arrhythmias?
What is the treatment for a patient with signs of poor perfusion due to SA node dysfunction?
What is the treatment for a patient with signs of poor perfusion due to SA node dysfunction?
What is the normal direction of depolarization impulse transmission through the conductive system and myocardium?
What is the normal direction of depolarization impulse transmission through the conductive system and myocardium?
What is the characteristic of a wandering atrial pacemaker in terms of pacemaker site?
What is the characteristic of a wandering atrial pacemaker in terms of pacemaker site?
What is the result of enhanced automaticity in the heart?
What is the result of enhanced automaticity in the heart?
What is the term for a heart cell that is not a pacemaker cell?
What is the term for a heart cell that is not a pacemaker cell?
What is the significance of a wandering atrial pacemaker?
What is the significance of a wandering atrial pacemaker?
What type of arrhythmia is characterized by a rapid heart rate?
What type of arrhythmia is characterized by a rapid heart rate?
What is the definition of multifocal atrial tachycardia (MAT)?
What is the definition of multifocal atrial tachycardia (MAT)?
What is the common underlying condition in patients with multifocal atrial tachycardia?
What is the common underlying condition in patients with multifocal atrial tachycardia?
What is the term for the classification of arrhythmias based on the site of origin?
What is the term for the classification of arrhythmias based on the site of origin?
What is the characteristic of premature atrial contractions (PACs) in terms of P wave morphology?
What is the characteristic of premature atrial contractions (PACs) in terms of P wave morphology?
What is the term for a slowing of the SA node?
What is the term for a slowing of the SA node?
What is the cause of a noncompensatory pause in the underlying rhythm in PACs?
What is the cause of a noncompensatory pause in the underlying rhythm in PACs?
What is the normal heart rate range for sinus bradycardia?
What is the normal heart rate range for sinus bradycardia?
What is the treatment for patients with multifocal atrial tachycardia?
What is the treatment for patients with multifocal atrial tachycardia?
What is the primary treatment for sinus bradycardia?
What is the primary treatment for sinus bradycardia?
What is the significance of multifocal atrial tachycardia?
What is the significance of multifocal atrial tachycardia?
What is the purpose of administering atropine sulfate in sinus bradycardia?
What is the purpose of administering atropine sulfate in sinus bradycardia?
What is the primary cause of sinus tachycardia?
What is the primary cause of sinus tachycardia?
Which of the following is a compensatory mechanism for decreased stroke volume?
Which of the following is a compensatory mechanism for decreased stroke volume?
What is the usual rate of sinus arrhythmia?
What is the usual rate of sinus arrhythmia?
What is the cause of sinus arrest?
What is the cause of sinus arrest?
What is the characteristic of the RR interval following a sinus arrest?
What is the characteristic of the RR interval following a sinus arrest?
What is the treatment for asymptomatic sinus arrest?
What is the treatment for asymptomatic sinus arrest?
What is the characteristic of the pause in sinus block?
What is the characteristic of the pause in sinus block?
Which of the following is a normal variant, particularly in young and elderly people?
Which of the following is a normal variant, particularly in young and elderly people?
What is the result of very rapid heart rates in diseased hearts?
What is the result of very rapid heart rates in diseased hearts?
Which of the following is a clinical significance of sinus tachycardia?
Which of the following is a clinical significance of sinus tachycardia?
What is the next step if the patient does not convert after 1 to 2 minutes of administering adenosine?
What is the next step if the patient does not convert after 1 to 2 minutes of administering adenosine?
Why is it important to determine whether the arrhythmia is narrow-complex or wide-complex tachycardia?
Why is it important to determine whether the arrhythmia is narrow-complex or wide-complex tachycardia?
What is the purpose of looking at lead II or VI in ECG?
What is the purpose of looking at lead II or VI in ECG?
What is the contraindication for DC countershock?
What is the contraindication for DC countershock?
What is the energy level of the initial synchronized direct current countershock?
What is the energy level of the initial synchronized direct current countershock?
What is the recommended action if the patient becomes unstable with a heart rate of more than 150 beats per minute?
What is the recommended action if the patient becomes unstable with a heart rate of more than 150 beats per minute?
What is the characteristic of the P wave in a PAC?
What is the characteristic of the P wave in a PAC?
What is the effect of paroxysmal supraventricular tachycardia on cardiac output?
What is the effect of paroxysmal supraventricular tachycardia on cardiac output?
What is the PR interval of an ectopic focus near the AV node?
What is the PR interval of an ectopic focus near the AV node?
What is the significance of frequent PACs?
What is the significance of frequent PACs?
What is the characteristic of the QRS complex in a PAC?
What is the characteristic of the QRS complex in a PAC?
What is the effect of vagal maneuvers on PSVT?
What is the effect of vagal maneuvers on PSVT?
What is the rate of paroxysmal supraventricular tachycardia?
What is the rate of paroxysmal supraventricular tachycardia?
What is the characteristic of the P wave in PSVT?
What is the characteristic of the P wave in PSVT?
What is the treatment for asymptomatic PACs?
What is the treatment for asymptomatic PACs?
What is the significance of PSVT in young patients with good cardiac reserves?
What is the significance of PSVT in young patients with good cardiac reserves?
