Which of the following describes a rapid heart rate?

Tachycardia is the term used to describe a rapid heart rate, typically defined as a resting heart rate over 100 beats per minute in adults. This condition can occur due to various factors, including exercise, stress, anxiety, certain medical conditions, and stimulant use. Understanding tachycardia is crucial for assessing a patient’s cardiovascular health and can help guide clinical decisions and interventions.

In contrast, bradycardia refers to a slower than normal heart rate, typically under 60 beats per minute. Bradypnea describes a slower than normal breathing rate, while malaise refers to a general feeling of discomfort or unease. None of these terms pertain to an increased heart rate, which is why tachycardia is the term that specifically captures the concept of a rapid heart rate.