However, tachycardia can be dangerous depending on the speed and type of rhythm.
From the en.wikipedia.org
She has ventricular tachycardia, a potentially dangerous irregular heart rhythm.
From the edition.cnn.com
Junctional tachycardia is an automatic tachycardia originating in the AV junction.
From the en.wikipedia.org
A heart rate over 100 beats per minute is generally accepted as tachycardia.
From the en.wikipedia.org
So this tachycardia comes from the atrium, maybe the right or left atrium.
From the abcnews.go.com
In addition, atrial tachycardia can sometimes be terminated with adenosine.
From the en.wikipedia.org
These are called ventricular tachycardia and ventricular fibrillation.
From the orlandosentinel.com
The ventricular tachycardia is characterized by something more regular.
From the abcnews.go.com
Dehydration, hyperventilation and tachycardia, or rapid heartbeat, can also be a problem.
From the abcnews.go.com
More examples
Abnormally rapid heartbeat (over 100 beats per minute)
Tachycardia comes from the Greek words tachys (rapid or accelerated) and kardia (of the heart). Tachycardia typically refers to a heart rate that exceeds the normal range for a resting heartrate (heartrate in an inactive or sleeping individual). ...
A rapid resting heart rate, especially one above 100 beats per minute
Increased heart rate due to fear, exercise, nervousness, adrenaline, etc.
More that 120 heartbeats a minute.
Relatively rapid heart action whether physiological (as after exercise) or pathological
A rapid pulse generally a pulse over 100 at rest
Tachycardia refers to heart rates that are abnormally fast (more than 100 beats/min. at resting). There are many different reasons why heart rates might be accelerated, some are a normal response to physical exercise or emotional stress - others are more serious and have their basis in abnormal ...
This is a form of arrhythmia or loss of steady rhythm where the heat beats way too fast. (The blood doesn't have time to fill the chambers between each beat.) This would be over 100 beats per minute. ...