Premature Junctional Complex | Reference Guide

EKG Features

Rate: The underlying rate
Rhythm: Regular with premature beats
P Wave: Present before, during (hidden) or after QRS, if visible it is inverted
PR Interval: Absent or short
QRS: Normal (0.06-0.10 sec)

Premature junctional contractions (PJC) are early heart beats originating from the AV junction. Occasional PJCs are common in otherwise healthy patients.
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Emergency Medical