What is the condition where the heart rate exceeds 100 bpm called?

Tachycardia is the medical term used to describe a condition where the heart rate exceeds 100 beats per minute (bpm). This elevated heart rate can occur in response to various factors, including physical activity, stress, fever, anemia, or heart-related conditions. It's significant because it can affect cardiac output and overall health, potentially leading to complications if it persists or occurs inappropriately.

Bradycardia, in contrast, refers to a slower than normal heart rate (usually below 60 bpm); normocardia is not a widely recognized medical term. Arrhythmia refers to any irregularity in the heart rhythm, which can include a range of conditions from tachycardia to bradycardia and other rhythm disturbances, but it does not specifically denote a heart rate above 100 bpm. Thus, tachycardia is the correct term for a heart rate exceeding this threshold.