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CMC Cardiac Medicine Certification

Category - CMC

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After recording the ECG of a patient the nurse observes that QRS complex is wider. Which of the following is unlikely to be the cause of this finding?

Ventricular premature beat
Paroxysmal Ventricular tachycardia
Left bundle branch block
Intraventricular conduction defect

Explanation

Answer- B - Paroxysmal ventricular tachycardia is unlikely diagnosis if the ECG shows wide QRS. The differential Diagnosis of Wide QRS Complexes includes:
•Aberrant ventricular conduction
•Preexisting left or right bundle branch block
•Preexisting nonspecific IVCD
•Antegrade conduction through the bypass tract in patients with WPW

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CMC Cardiac Medicine Certification

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