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 fast heart rate may be caused by a more
serious health problem. A heart problem or other medical conditions may sometimes
cause a fast heart rate. A fast heart rate may cause
lightheadedness, or fainting.
Heart rhythm problems that cause a fast heart rate include atrial fibrillation and supraventricular tachycardia (SVT).
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.
Other Works ConsultedOlgin JE, Zipes DP (2015). Specific arrhythmias: Diagnosis and treatment. In DL Mann et al., eds., Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 10th ed., vol. 1, pp. 748-797. Philadelphia: Saunders.Page RL, et al. (2015). 2015 ACC/AHA/HRS guideline for the management of adult patients with supraventricular tachycardia: A report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. Circulation. DOI: 10.1161/CIR.0000000000000311. Accessed September 23, 2015.
ByHealthwise StaffPrimary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency MedicineMartin J. Gabica, MD - Family MedicineE. Gregory Thompson, MD - Internal MedicineSpecialist Medical ReviewerDavid Messenger, MDH. Michael O'Connor, MD - Emergency Medicine
Current as ofSeptember 21, 2016
Current as of:
September 21, 2016
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & Martin J. Gabica, MD - Family Medicine & E. Gregory Thompson, MD - Internal Medicine & David Messenger, MD & H. Michael O'Connor, MD - Emergency Medicine
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Last modified on: 8 September 2017