In second-degree heart blocks, an occasional p-wave does not get conducted to the ventricles. This usually results in a long PR interval, but more telling is that some p-waves are not followed by subsequent QRS complexes.
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// LEARN TO READ ELECTROCARDIOGRAMS
Rapid Interpretation of EKG's - https://amzn.to/2XO2tTl
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// MORE EKG/ECG VIDEOS
First Degree Heart Block: • First Degree AV Block - EKG (ECG) Interpr...
Third Degree Heart Block: • Third Degree (Complete) Heart Block - EKG...
Mobitz Type I vs Type II: • Mobitz Type I vs Type II Second Degree Hea...
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