Cardiac Arrhythmia Overview

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12 Questions

Sinus bradycardia is characterized by atrial and ventricular rates greater than 100 to 180 beats per minute

False

Premature ventricular contractions (PVCs) result from decreased irritability of the ventricles

False

Flutter is characterized by rapid, regular contraction of atria or ventricles reaching up to 250/300 beats per minute

True

Fibrillation is characterized by rapid, random, irregular contraction reaching up to 350-400 beats per minute

True

Sinus tachycardia is characterized by atrial and ventricular rates more than 100 to 180 beats per minute

True

Cardioversion is used mainly in atrial tachycardia

False

Premature ventricular contractions (PVCs) result from increased irritability of the ventricles

False

Cardioversion delivers an unsynchronized electrical shock to change a dysrhythmia to a rhythm

False

Electrodes for cardioversion are placed at the right of the sternum below the clavicle and at the base of the heart

False

Which of the following can cause dysrhythmias?

Coronary artery disease

What are ectopic beats in the context of dysrhythmias?

Irregular heartbeats caused by impulses from specialized cells in the heart

What is the characteristic feature of dysrhythmia known as flutter?

Rapid, regular contraction of atria or ventricles reaching up to 250/300 beats per minute

Test your knowledge of cardiac arrhythmias with this quiz covering sinus bradycardia, sinus tachycardia, premature ventricular contractions (PVCs), atrial and ventricular flutter, and fibrillation.

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