Home > Health Library > Fast Heart Rate
A normal heart rate for a healthy adult is between 60 and
100 beats per minute. Heart rates of more than 100 beats per minute
(tachycardia) can be caused by:
Babies and children younger than 2 years old have higher
heart rates because their body metabolism is faster. Heart rates decrease as
children grow, and usually by the teen years the heart rate is in the same
range as an adult's.
A new fast heart rate may be caused by a more
serious health problem. Heart disease or other medical conditions may sometimes
cause a fast heart rate. A fast heart rate may cause
lightheadedness, or fainting. Atrial fibrillation is
the most common type of fast heartbeat. It causes the heart's upper chambers to
beat irregularly, reducing blood flow to the heart muscle and to the rest of
the body. Atrial fibrillation increases your chance of having a
stroke or a blood clot in the lungs (pulmonary embolism).
If you have
heart disease or
heart failure, or if you have had a
heart attack, be sure you understand the seriousness
of a change in your heart rate or rhythm.
ByHealthwise StaffPrimary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency MedicineSpecialist Medical ReviewerDavid Messenger, MDH. Michael O'Connor, MD - Emergency Medicine
Current as ofFebruary 20, 2015
Current as of:
February 20, 2015
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & David Messenger, MD & H. Michael O'Connor, MD - Emergency Medicine
How this information was developed to help you make better health decisions.
To learn more, visit Healthwise.org
© 1995-2015 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
St. Vincent's HealthCare 1 Shircliff Way, Jacksonville, FL 32204 904-308-7300
©2015 St. Vincent's HealthCare - All rights reserved.