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Diploma in Nursing: ECG and Arrhythmia Basics

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Diploma in Nursing: ECG and Arrhythmia Basics

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Questions and Answers

What is the interpretation of an ECG rhythm with a rate of 120 bpm, regular rhythm, and normal P wave and QRS complex?

Sinus bradycardia

Sinus tachycardia (correct)

Atrial fibrillation

Ventricular tachycardia

What is the immediate treatment for ventricular fibrillation?

Cardioversion

Defibrillation (correct)

Medications such as amiodarone, digitalis, and verapamil

Monitoring blood pressure

What is the characteristic of the QRS complex in a sinus rhythm?

Absent QRS complex

Duration < 0.12 seconds (correct)

Duration > 0.12 seconds

Prolonged QRS complex

What is the interpretation of an ECG rhythm with a rate of 40 bpm, regular rhythm, and present P wave?

Sinus bradycardia Signup and view all the answers

What is the characteristic of the P wave in atrial fibrillation?

Fibrillatory P wave Signup and view all the answers

What is the interpretation of an ECG rhythm with a rate of 180 bpm, regular rhythm, and present P wave?

Supraventricular tachycardia Signup and view all the answers

What is the most likely cardiac rhythm diagnosed in Roger's ECG?

Sinus Rhythm with First-Degree Atrioventricular Block Signup and view all the answers

What is the probable P wave duration in Roger's ECG?

100-120 ms Signup and view all the answers

What is the heart rate of Roger's ECG, given a PR interval of 160 ms and a RR interval of 800 ms?

72 beats per minute Signup and view all the answers

What is the probable morphology of the QRS complex in Roger's ECG?

Narrow QRS complex (< 120 ms) Signup and view all the answers

What is the likely interpretation of Roger's ECG, given a PR interval of 160 ms and a RR interval of 800 ms?

First-Degree Atrioventricular Block Signup and view all the answers

What is the probable clinical significance of Roger's ECG findings?

Increased risk of atrial fibrillation Signup and view all the answers

What is the primary purpose of calculating the heart rate in ECG interpretation?

To identify the cardiac rhythm Signup and view all the answers

What is the method for calculating heart rate in regular rhythms?

Dividing 300 by the number of large squares between two successive R waves Signup and view all the answers

What is the normal duration of the QRS complex in a normal sinus rhythm?

Less than 0.12 seconds Signup and view all the answers

What is the characteristic of P waves in a normal sinus rhythm?

Present and normal, upward, and rounded Signup and view all the answers

What is the interpretation of an ECG with a heart rate between 60-100 bpm and a regular rhythm?

Normal sinus rhythm Signup and view all the answers

What is the next step after calculating the heart rate in ECG interpretation?

Assess the P waves Signup and view all the answers