CLINICAL MEDICINE

MEDICINE

CARDIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A “run” of ventricular tachycardia occurs if at least ____ PVCs occur in a row.
A
two
B
three
C
four
D
five
Explanation: 

Detailed explanation-1: -V-tach occurs when your pulse rate is more than 100 beats per minute, and you have at least three irregular heartbeats, or arrhythmias, in a row.

Detailed explanation-2: -It is important to note that three or more consecutive PVCs are classified as ventricular tachycardia. If the PVCs continuously alternate with a regular sinus beat, the patient is in bigeminy. [3] Likewise, if every third heartbeat is a PVC, then it is named trigeminy.

Detailed explanation-3: -When PVC happens in a pattern of three beats, doctors call it trigeminy. It can feel like fluttering in your chest or a skipped heartbeat. There are two kinds of trigeminy: Two normal heartbeats followed by one extra beat.

Detailed explanation-4: -Ventricular Tachycardia exists when three or more PVCs occur in a row at a rate greater than 100 BPM. It is unsustained if it lasts less than 30 seconds.

Detailed explanation-5: -Sustained ventricular tachycardia is defined as tachycardia that continues for more than 30 seconds or leads to hemodynamic compromise within 30 seconds and requires intervention. On the other hand, non-sustained ventricular tachycardia lasts less than 30 seconds and does not cause hemodynamic instability.

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