The technical term for an excessively rapid heart rate is called what?

Tachycardia refers specifically to an excessively rapid heart rate, typically defined as a resting heart rate of over 100 beats per minute in adults. This condition can result from various factors, such as stress, fever, anemia, or the effects of certain drugs, and may indicate underlying health issues requiring attention.

Bradycardia, in contrast, describes a slow heart rate, usually defined as fewer than 60 beats per minute. Arrhythmia refers to irregularities in the heart's rhythm, which can encompass both fast and slow heart rates. Hypertension deals with high blood pressure, rather than heart rate. Therefore, tachycardia is the accurate term for an excessively rapid heart rate.