What is the heart rate termed as tachycardia?

The term tachycardia refers specifically to a heart rate that exceeds the normal resting rate, which is generally recognized as over 100 beats per minute for adults. This threshold is important because it indicates a possible underlying health issue or stress on the body that necessitates further evaluation and monitoring.

While options that suggest different heart rate thresholds may seem plausible, tachycardia is clinically defined starting at 100 beats per minute, making this categorization crucial in both diagnoses and treatment decisions. Understanding this definition helps healthcare professionals recognize when an individual's heart rate is elevated and assess the possible need for intervention or investigation into potential causes.