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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Tachycardia electrocardiogram

Introduction

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Overview

Overview

Tachycardia is defined as heart rate more than 100 beats per minute and it can be sinus tachycardia, ventricular tachycardia or supraventricular tachycardia. Ventricular tachycardia can be distinguished by broad QRS complexes on an ECG.

Electrocardiogram

Electrocardiogram

Shown below is an example of an ECG showing heart rate of more than 100 beats per minute indicating sinus tachycardia along with tall peaked T waves in the chest leads.

References

References

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]