Synchronized Cardioversion Quiz

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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?

Patient is hemodynamically unstable Signup and view all the answers

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

Anterior to posterior Signup and view all the answers

What is the normal heart rate range for sinus rhythm?

60-100 beats per minute Signup and view all the answers

Which of the following is a cause of sinus bradycardia?

Hypoxia Signup and view all the answers

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

0.12-0.20 seconds Signup and view all the answers

In managing sinus bradycardia, which medication is administered first?

Atropine 0.5 mg IV Signup and view all the answers

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

1:1 Signup and view all the answers

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

Both rate and rhythm disturbances Signup and view all the answers

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

P:QRS ratio of 2:1 Signup and view all the answers

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

Increase heart rate Signup and view all the answers

What medication is typically used for treating stable ventricular tachycardia?

Amiodarone Signup and view all the answers

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

Pulmonary embolism Signup and view all the answers

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

300 mg Signup and view all the answers

What should be assessed when evaluating ventricular tachycardia?

QRS complex and P waves Signup and view all the answers

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

Ventricular fibrillation Signup and view all the answers

What is a common treatment approach for unstable ventricular tachycardia?

Cardioversion Signup and view all the answers

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

Asystole Signup and view all the answers

What common electrolyte abnormalities can precipitate ventricular fibrillation?

Hypomagnesemia and Hypokalemia Signup and view all the answers

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

Severe heart disease Signup and view all the answers

What key management step is part of treating PEA?

Oxygenation Signup and view all the answers

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

Hypertension Signup and view all the answers

What is a characteristic feature of a complete heart block?

Impulses from the atria are completely blocked at the AV node Signup and view all the answers

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

Maintain cardiac output Signup and view all the answers

What type of intervention might be used for symptomatic dysrhythmias?

Pharmacologic treatments Signup and view all the answers

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

Maintains adequate cardiac output Signup and view all the answers

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

Immediate use of defibrillation Signup and view all the answers

What is the primary purpose of continuous cardiac monitoring?

To provide real-time assessment of heart rhythms Signup and view all the answers

Which component of the ECG complex indicates atrial depolarization?

P Wave Signup and view all the answers

What does an elevated ST segment typically indicate?

Myocardial infarction Signup and view all the answers

How long is the normal duration of a PR interval?

0.12 – 0.20 seconds Signup and view all the answers

What might a prolonged QRS complex suggest?

Delayed conduction or block within the ventricles Signup and view all the answers

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

Telemetry Signup and view all the answers

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

Electrolyte imbalance or myocardial ischemia Signup and view all the answers

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

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

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

Indicates the contraction of the ventricles Signup and view all the answers

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

Voltage and time, respectively Signup and view all the answers

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

Myocardial ischemia or old injury Signup and view all the answers

How is lead II characterized on an ECG?

P wave is upright, QRS is upright Signup and view all the answers

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

D Wave Signup and view all the answers

What is the role of electrodes in ECG monitoring?

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