Synchronized Cardioversion Quiz
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Questions and Answers

What is the primary purpose of synchronized cardioversion?

  • To induce ventricular fibrillation
  • To increase heart rate during bradycardia
  • To augment the cardiac output
  • To stop supraventricular and ventricular tachycardias (correct)

    • Why is it important for energy to be delivered during the QRS complex in synchronized cardioversion?

  • To enhance the effectiveness of defibrillation
  • To make the procedure less painful
  • To prevent the heart from stopping completely
  • To avoid discharging energy during the T wave (correct)

    • What type of cardiomyopathies can be treated with synchronized cardioversion?

  • Aortic stenosis
  • Atrial flutter with rapid ventricular response (correct)
  • Pulmonary hypertension
  • Complete heart block

    • What is a common indication for performing cardioversion urgently?

    <p>Patient is hemodynamically unstable</p> Signup and view all the answers

    What is the preferred placement of the hands-free pads for synchronized cardioversion?

    <p>Anterior to posterior</p> Signup and view all the answers

    What is the normal heart rate range for sinus rhythm?

    <p>60-100 beats per minute</p> Signup and view all the answers

    Which of the following is a cause of sinus bradycardia?

    <p>Hypoxia</p> Signup and view all the answers

    What is the PR interval duration typically seen in sinus tachycardia?

    <p>0.12-0.20 seconds</p> Signup and view all the answers

    In managing sinus bradycardia, which medication is administered first?

    <p>Atropine 0.5 mg IV</p> Signup and view all the answers

    What is the expected P:QRS ratio in sinus tachycardia?

    <p>1:1</p> Signup and view all the answers

    What factors can potentially alter blood flow in the presence of dysrhythmias?

    <p>Both rate and rhythm disturbances</p> Signup and view all the answers

    Which of the following ECG characteristics is not associated with sinus rhythm?

    <p>P:QRS ratio of 2:1</p> Signup and view all the answers

    What is the primary goal in the management of sinus bradycardia?

    <p>Increase heart rate</p> Signup and view all the answers

    What medication is typically used for treating stable ventricular tachycardia?

    <p>Amiodarone</p> Signup and view all the answers

    Which of the following is NOT a cause of ventricular tachycardia?

    <p>Pulmonary embolism</p> Signup and view all the answers

    What is the maximum initial dose of Amiodarone for pulseless ventricular tachycardia?

    <p>300 mg</p> Signup and view all the answers

    What should be assessed when evaluating ventricular tachycardia?

    <p>QRS complex and P waves</p> Signup and view all the answers

    Which rhythm is characterized by disorganized ventricular activity with no cardiac output?

    <p>Ventricular fibrillation</p> Signup and view all the answers

    What is a common treatment approach for unstable ventricular tachycardia?

    <p>Cardioversion</p> Signup and view all the answers

    Which condition is associated with a lack of heart activity and no cardiac output?

    <p>Asystole</p> Signup and view all the answers

    What common electrolyte abnormalities can precipitate ventricular fibrillation?

    <p>Hypomagnesemia and Hypokalemia</p> Signup and view all the answers

    What is the primary cause of Pulseless Electrical Activity (PEA)?

    <p>Severe heart disease</p> Signup and view all the answers

    What key management step is part of treating PEA?

    <p>Oxygenation</p> Signup and view all the answers

    Which of the following is NOT one of the H's associated with causes of cardiac arrest?

    <p>Hypertension</p> Signup and view all the answers

    What is a characteristic feature of a complete heart block?

    <p>Impulses from the atria are completely blocked at the AV node</p> Signup and view all the answers

    What is an appropriate goal of nursing care for patients with dysrhythmias?

    <p>Maintain cardiac output</p> Signup and view all the answers

    What type of intervention might be used for symptomatic dysrhythmias?

    <p>Pharmacologic treatments</p> Signup and view all the answers

    Which of the following describes the state of a stable patient with dysrhythmias?

    <p>Maintains adequate cardiac output</p> Signup and view all the answers

    What is a common management step used in response to a patient's unstable condition?

    <p>Immediate use of defibrillation</p> Signup and view all the answers

    What is the primary purpose of continuous cardiac monitoring?

    <p>To provide real-time assessment of heart rhythms</p> Signup and view all the answers

    Which component of the ECG complex indicates atrial depolarization?

    <p>P Wave</p> Signup and view all the answers

    What does an elevated ST segment typically indicate?

    <p>Myocardial infarction</p> Signup and view all the answers

    How long is the normal duration of a PR interval?

    <p>0.12 – 0.20 seconds</p> Signup and view all the answers

    What might a prolonged QRS complex suggest?

    <p>Delayed conduction or block within the ventricles</p> Signup and view all the answers

    Which type of ECG monitor provides a graphic representation of the heart's electrical activity over time?

    <p>Telemetry</p> Signup and view all the answers

    What is indicated by a T wave that is flat or inverted?

    <p>Electrolyte imbalance or myocardial ischemia</p> Signup and view all the answers

    Which statement accurately describes the purpose of a 12-lead ECG?

    <p>It provides a comprehensive view of the heart's electrical activity in 12 different positions.</p> Signup and view all the answers

    What is the significance of the QRS complex in an ECG?

    <p>Indicates the contraction of the ventricles</p> Signup and view all the answers

    What do the vertical and horizontal lines on ECG graph paper represent?

    <p>Voltage and time, respectively</p> Signup and view all the answers

    Which condition is most likely indicated by a depression in the ST segment?

    <p>Myocardial ischemia or old injury</p> Signup and view all the answers

    How is lead II characterized on an ECG?

    <p>P wave is upright, QRS is upright</p> Signup and view all the answers

    Which of the following is NOT a component of the ECG complex?

    <p>D Wave</p> Signup and view all the answers

    What is the role of electrodes in ECG monitoring?

    <p>To detect electrical activity from the heart and transmit it to the monitor</p> Signup and view all the answers

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