What is the definition of tachycardia?

Tachycardia is defined as a heart rate that exceeds 100 beats per minute (bpm) in adults. This elevated heart rate can be a normal response to exercise, anxiety, or stress, but it can also indicate underlying medical conditions, such as fever, anemia, or heart problems. Recognizing tachycardia is important in clinical practice as it may require further assessment and management depending on the patient’s overall condition and symptoms.

In contrast, a heart rate below 60 bpm is classified as bradycardia, which may signify various health issues or simply reflect athletic conditioning in some individuals. A heart rate between 60-100 bpm is considered normal and typically does not require medical intervention. An absent heart rate indicates a critical condition necessitating immediate resuscitation efforts. Understanding these definitions helps in making accurate assessments for cardiovascular health.