First Degree Heart Block



First Degree Heart Block EKG tracing

marker1
marker2






Caliper Time Interval: ___ seconds




RhythmRegular
RateThe underlying rate
P WaveNormal
PR IntervalProlonged (>0.20 sec)
QRSNormal (0.06-0.10 sec)
NotesA first degree AV block occurs when electrical impulses moving through the Atrioventricular (AV) node are delayed (but not blocked). First degree indicates slowed conduction without missed beats.