What is defined as a rapid pulse with beats exceeding 104 beats per minute?

The definition of a rapid pulse characterized by heartbeats exceeding 104 beats per minute is termed tachycardia. This condition indicates that the heart is beating faster than the normal resting rate, which is typically between 60 and 100 beats per minute for adults. Tachycardia can occur in response to numerous physiological conditions, such as exercise, stress, or fever, as well as in certain medical conditions requiring further investigation and management.

The other terms relate to different heart rate abnormalities. Bradycardia refers to a slower than normal heart rate, generally considered to be fewer than 60 beats per minute. Arrhythmia denotes any irregularity in the heart rhythm, which can manifest as either tachycardia or bradycardia, as well as other rhythmic disturbances. Palpitations describe the sensation of feeling the heart beating more forcefully or with an irregular rhythm, but they do not quantify the heart rate itself. Understanding these definitions is crucial for recognizing and managing different cardiac conditions effectively.