When is ventricular tachycardia considered sustained?

When is ventricular tachycardia considered sustained?

• A. When it lasts longer than 15 seconds
• B. When it lasts longer than 30 seconds
• C. When it lasts longer than 45 seconds
• D. When it lasts longer than 60 seconds

Answer: (B)

Ventricular tachycardia (VT) is classified as sustained when it lasts longer than 30 seconds. This duration is significant because sustained VT can lead to hemodynamic instability and may require immediate medical intervention. Episodes shorter than this may be classified as nonsustained VT, which typically doesn't pose the same immediate risks. In clinical practice, recognizing the distinction based on duration helps healthcare professionals determine the urgency of treatment, as sustained VT can lead to more severe complications, including syncope or even cardiac arrest. Therefore, the criteria established for the duration of ventricular tachycardia is crucial for appropriate management and care in potentially life-threatening situations.