Blocked PAC’s
Results:
How to avoid misdiagnosis of irregular rhythms
A 80-year-old woman is referred to the emergency department for suspected rapid atrial fibrillation. The following ECG is obtained on arrival:
Blocked Premature Atrial Complexes (PACs)
Key Points PACs and P Waves: P waves generated by PACs may either be conducted and followed by a QRS complex or blocked, resulting in a pause without an associated…
ECG Basics and Fundamentals: causes of pauses or clumped/grouped beats on the ECG
A 72-year-old man with PMHx of HTN presents to the emergency department with vomiting and lightheadedness. He is noted to be slightly bradycardic with an irregular rhythm on arrival. The…
Bradydysrhythmias: a differential for too many P waves and a lesson in how to break down difficult rhythms
An 81-year-old female presents to the ED with lightheadedness and “funny heart beats”. She has no associated dyspnea and is noted to have normal vital signs. The following ECG is…
Differential Diagnoses: Non-conducted P-waves (P:QRS > 1)
HPI: A 92-year-old woman presents to the emergency department with lightheadedness. Case ECG Before watching this week’s video, ask yourself these questions: Focus on the rate and rhythm, what…
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