Rate of atrial tachycardia

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Prepare for the MyMichigan Telemetry Monitoring and Management Test. Utilize flashcards, multiple choice questions, each with hints and explanations. Master your exam!

Multiple Choice

Rate of atrial tachycardia

Explanation:
Atrial tachycardia is driven by an ectopic atrial focus, so the atria fire rapidly. The atrial rate in this condition is typically 140–250 beats per minute. The ventricular rate depends on how the AV node conducts these impulses, so you can see a wide range in observed heart rates depending on the conduction pattern (for example, 2:1 conduction around half the atrial rate). This distinguishes it from normal sinus rhythm (60–100 bpm) and from atrial flutter, where the atrial rate is typically 250–350 bpm. So the 140–250 bpm range best matches the atrial rate in atrial tachycardia.

Atrial tachycardia is driven by an ectopic atrial focus, so the atria fire rapidly. The atrial rate in this condition is typically 140–250 beats per minute. The ventricular rate depends on how the AV node conducts these impulses, so you can see a wide range in observed heart rates depending on the conduction pattern (for example, 2:1 conduction around half the atrial rate). This distinguishes it from normal sinus rhythm (60–100 bpm) and from atrial flutter, where the atrial rate is typically 250–350 bpm. So the 140–250 bpm range best matches the atrial rate in atrial tachycardia.

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