Definition
Tachycardia is a rapid heart rate of more than 100 beats per minute. Sinus tachycardia, from the heart's sinus node, is a normal response to exercise, illness, or stress.
There are several types of abnormal tachycardias or arrhythmias . These can come from two places:
- Atria (the two smaller chambers on the top of the heart)—called supraventricular tachycardias
- Ventricles (the lower chambers of the heart)—called ventricular tachycardia
This condition can be life-threatening. But, it can be treated. If you think you or someone you know has this condition, get emergency help.
Electrical System and Chambers of the Heart
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2012 EBSCO Publishing All rights reserved.
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