Which term describes rapid heart rate?

• A. Bradycardia
• B. Tachycardia
• C. Palpitations
• D. Hypertension

Answer: (B)

Rapid heart rate is described by the term tachycardia. The prefix “tachy-” means fast, and “cardia” refers to the heart, so tachycardia literally means a fast heart. In adults, a resting heart rate above about 100 beats per minute is generally considered tachycardia. This distinguishes it from bradycardia, which is a slow heart rate (usually under 60 bpm). Palpitations describe the sensation of the heart racing or pounding, but not the rate itself. Hypertension is high blood pressure, a different measurement entirely. So when the question asks for the term for a rapid heart rate, tachycardia is the correct term.