Sinus Tachycardia is a normal physiological response to situations such as exercise, or an increased sympathetic tone with increased catecholamine release—stress, fright, flight, anger. Other causes include:anxiety, fever, dehydration, etc. IOW, it's normal. Now.... there are other types of tachycardia which are NOT normal; ventricular tachycardia, supraventricular tachycardia, inappropriate sinus tachycardia, postural orthostatic tachycardia. Do you have the nomenclature correct?
Sinus tachycardia is basically a heart rate above 100 that is not an arrhythmia, in other words, a normal rhythm, but rapid.
As Tom said, there are lots of causes for sinus tachycardia. Some are normal, some are caused by an underlying disease that actually rarely has something to do with the heart.
Normal causes of sinus tachycardia:
- Exercise / physical activity (incl. activities like climbing stairs, sex, etc)
- After heavy meals, especially high-carb meals.
- Standing up too quickly
Copyright 1994-2017MedHelp International.All rights reserved. MedHelp is a division of Aptus Health.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.