ECG Quiz PAKAR 2025

Due to the fluctuating beat, the pulmonary division consulted a 63-yo man with COPD who had a lengthy history of frequent palpitations. What is the ECG interpretation?

• Atrial fibrillation with rapid ventricular response

• Sinus tachycardia with PAC

• Atrial flutter with rapid ventricular response

• Multifocal atrial tachycardia

A 65 yo female underwent mitral valve replacement due to a flail anterior mitral leaflet with severe mitral regurgitation. Postoperatively she required pacing via epicardial wires. What is most likely ECG diagnosis?

• Atrial failure to pace

• Ventricular loss of capture

• Atrioventricular lead reversal

• Under sensing ventricular

85 yo female with letargic. What is the interpretation of this ECG?

• SA block II

• AV block II, mobitz 1

• AV block II, mobitz 2

• Total AV block

A 50 yo female with known coronary artery disease & reduced LV function presented to ET for recurrent palpitation & dyspnea. What is the ECG interpretation?

• Multifocal atrial tachycardia

• Atrial fibrillation with preexcitation

• Atrial tachycardia with WPW

• Atrial fibrillation with LBBB

73 yo with syncope, post pacemaker insertion 4 weeks ago due to complete heart block. What does this ECG show?

• Undersensing

• Oversensing

• Lost capture

• None of the above

A 23-yo female came to ET with palpitation and lightheadedness. What is the most likely diagnosis?

• Atrioventricular reentrant tachycardia

• Atrial tachycardia

• Atrioventricular nodal reentrant tachycardia

• Fascicular ventricular tachycardia

A 65 yo male with a history of sinus node dysfunction underwent implantation of a dual chamber PPM. What is the interpretation of the rhythm strip?

• Normal pacemaker function

• Intermittent failure to capture

• Oversensing atrial

• Undersensing ventricular

A middle-aged male with history of myocardial infarction presented with mild palpitations, dyspnea, & fatigue. What is the ECG rhythm?

• Ventricular tachycardia

• Atrial tachycardia with variable AV conduction

• Orthodromic AVRT

• Sinus tachycardia with preexisting RBBB

This 58-yo man experienced an occasionally exertional dyspnea & dizziness. The baseline ECG is shown (Panel A). During stage II of the Modified Bruce Protocol, no rise in his heart rate was observed (Panel B. Which is the following being correct?

• Mobitz II AV block was noted during resting

• The site of block is in the His Bundle

• Exercise-induced heart block has lower risk for progression to complete heart block

• Complete heart block was developed during exercise

An ECG recording was obtained in an elderly female admitted to the hospital for recurrent presyncope episode. The ventricular rhythm is regular 39 bpm. What is the ECG abnormality?

• Junctional bradycardia

• Atrial fibrillation slow ventricular response

• Atrial fibrillation with complete heart block

• Sinus bradycardia