Tachyarrhythmia is defined as?

Tachyarrhythmia is defined as?

• A. A rapid, irregular heart rate above 100 bpm.
• B. A slow, irregular heart rate below 60 bpm.
• C. A rhythm with absent P waves.
• D. A rhythm with prolonged QT interval.

Answer: (A)

A fast heart rhythm, defined by a heart rate over 100 beats per minute, is what tachyarrhythmia describes. This option captures the essential feature: the heart is beating unusually quickly. The irregularity mentioned can occur with several fast rhythms (like atrial fibrillation), but the key point is the elevated rate. The other statements describe either a slow rate (bradyarrhythmia), a pattern that isn’t defined by tachycardia (absence of P waves can appear in specific atrial arrhythmias but doesn’t define tachyarrhythmia), or a duration abnormality of repolarization (prolonged QT), none of which define a fast rhythm.

A fast heart rhythm, defined by a heart rate over 100 beats per minute, is what tachyarrhythmia describes. This option captures the essential feature: the heart is beating unusually quickly. The irregularity mentioned can occur with several fast rhythms (like atrial fibrillation), but the key point is the elevated rate. The other statements describe either a slow rate (bradyarrhythmia), a pattern that isn’t defined by tachycardia (absence of P waves can appear in specific atrial arrhythmias but doesn’t define tachyarrhythmia), or a duration abnormality of repolarization (prolonged QT), none of which define a fast rhythm.