What does the term "tachycardia" refer to?

The term "tachycardia" refers to an abnormally rapid heart rate, typically defined as exceeding 100 beats per minute. This condition can arise from various factors, including physiological responses to stress, exercise, fever, or underlying medical issues such as heart disease. Understanding tachycardia is crucial for paramedics and healthcare professionals because it can indicate underlying conditions that may require immediate medical attention. Recognizing a high heart rate allows for appropriate assessments and interventions to prevent potential complications, such as decreased cardiac output or increased oxygen demand by the heart muscle. This knowledge is fundamental when determining a patient's health status in emergency situations.