Which term would be described as a life-threatening rhythm disturbance where the ventricles quiver and fail to pump effectively?

Which term would be described as a life-threatening rhythm disturbance where the ventricles quiver and fail to pump effectively?

• A. Myocardial Infarction
• B. Synocope
• C. Ventricular Fibrillation (VF)
• D. Convulsion

Answer: (C)

Ventricular fibrillation is a life-threatening heart rhythm where the ventricles quiver instead of contracting in a coordinated way, so the heart cannot pump blood effectively. Because there’s no organized heartbeat, blood flow to the brain and organs stops quickly, leading to collapse and loss of consciousness unless treated immediately. On an ECG, you’d see chaotic, rapid electrical activity with no recognizable rhythm, which is why this needs urgent action— CPR right away and defibrillation to try to reset the heart to a normal rhythm. The other conditions are not the same kind of rhythm issue. A myocardial infarction is a heart attack due to blocked blood flow to the heart muscle, which can be life-threatening but is not described by the ventricles quivering. Syncope means fainting from temporary reduced brain perfusion, not a chaotic ventricular rhythm. Convulsions are seizures caused by abnormal brain activity, not a problem with the heart’s rhythm.

Ventricular fibrillation is a life-threatening heart rhythm where the ventricles quiver instead of contracting in a coordinated way, so the heart cannot pump blood effectively. Because there’s no organized heartbeat, blood flow to the brain and organs stops quickly, leading to collapse and loss of consciousness unless treated immediately. On an ECG, you’d see chaotic, rapid electrical activity with no recognizable rhythm, which is why this needs urgent action— CPR right away and defibrillation to try to reset the heart to a normal rhythm.

The other conditions are not the same kind of rhythm issue. A myocardial infarction is a heart attack due to blocked blood flow to the heart muscle, which can be life-threatening but is not described by the ventricles quivering. Syncope means fainting from temporary reduced brain perfusion, not a chaotic ventricular rhythm. Convulsions are seizures caused by abnormal brain activity, not a problem with the heart’s rhythm.