Question

identify this rhythm

ventricular tachycardia
accelerated junctional rhythm
supraventricular tachycardia
accelerated idioventricular rhythm
3rd degree heart block

Explanation:

Analyze QRS morphology and rate

• QRS complexes are wide (\(> 0.12\text{ s}\)) and bizarre, indicating ventricular origin.
• The rate is approximately \(75\text{ bpm}\) (R-R interval is about 4 large squares: \(300 / 4 = 75\)).

Determine the rhythm classification

• Ventricular escape rhythm is typically \(20\text{--}40\text{ bpm}\).
• Ventricular tachycardia is typically \(\ge 100\text{--}120\text{ bpm}\).
• A ventricular rhythm between \(50\text{--}110\text{ bpm}\) is classified as Accelerated Idioventricular Rhythm (AIVR).

Match with options

• The calculated rate of \(75\text{ bpm}\) with wide QRS complexes matches "Accelerated Idioventricular Rhythm".

Answer:

• (A) Ventricular Tachycardia
• (B) Accelerated Junctional Rhythm
• (C) Supraventricular Tachycardia</mcq-correct>
• (D) Accelerated Idioventricular Rhythm (Correct answer)

<mcq-option>(E) 3rd Degree Heart Block