NCCT NCMA Practice Questions - National Certified Medical Assistant (NCCT) Exam

Which EKG finding is the hallmark of a third-degree (complete) heart block?

A constant PR interval that is longer than 0.20 seconds Progressively lengthening PR interval with dropped QRS complexes Complete dissociation between P waves and QRS complexes A 'sawtooth' pattern of P waves

Correct Answer:

Complete dissociation between P waves and QRS complexes

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