ECG Blog #376 — A 15yo with Fever.
Ken Grauer, MD
APRIL 23, 2023
Realizing that slight variation in the P-P interval is common ( known as sinus arrhythmia ) — the PINK arrows in Figure-3 suggest the probable location of underlying sinus P waves. Certain complex arrhythmias may have more than a single plausible rhythm interpretation. This is precisely what we see in Figure-4.
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