EKG types of beats and characteristics

- info gathered from videos and/or the notes from the modules

BPM range for junctional rhythm?

40-60 BPM

Junctional rhythm characteristics

• no p-waves present

• BPM 40-60 BPM

• narrow QRS <120 ms

1st degree AV block characteristics

• PR interval greater than or equal to 200 ms

  • this is 5 small boxes or one big box

    • (normal one is 120-200 ms)

• no dropped beats

2nd-degree AV block, mobitz I

• PR is getting progressively getting longer and longer until there is a dropped beat

• PR interval starts over and then the cycle repeats

  • tip: look at the PR interval that goes before and after the dropped beat, are they different?

2nd-degree AV block, mobitz II

• PR interval is constant (can be both prolonged or not)

• dropped beats

idioventricular rhythm characteristics

• rate is origninating from the ventricles

• BOM usually 20-40 BPM

• QRS → wide, greater than or equal to 120 ms (three small boxes)

• normally no p-waves

atrial fibrillation characteristics

• no p-waves

• irregular rhyrthms

multifocal atrial tachycardia (MAT)

• irregular regular (varying PR intervals)

• p-wave morphology is greater than or equal to 3

• ** rate: at least 100 BPM

wandering atrial pacemaker

• irregular regular (varying PR intervals)

• p-wave morphology is greater than or equal to 3

• less than 100 BPM