If you are experiencing an acute and severe episode of ventricular tachycardia, your heart may need to be shocked with an external defibrillator to get into a normal rhythm. If you need emergency care, call 911 right away. If you have any of the following symptoms, seek immediate care:
- You feel dizzy or lightheaded.
- You have fainted or feel as if you might faint.
- You experience shortness of breath.
