Welch Allyn Means ECG Physicians Manual for CP Series Electrocardiographs - User Manual - Manual (Page 47)

MEANS Physicians Manual
Welch Allyn
47
3.10 Group 7: Regular rhythms with P/QRS > 1.0 and PR range > 30 ms
Say: “atrial tachycardia”
if: 300

shortest PP interval < 370 ms
Say:
“sinus tachycardia”
if: 370

shortest PP interval < 600 ms
Say:
“sinus rhythm”
if: shortest PP interval

600 ms
Say:
“with second degree AV block at 2:1 conduction ratio”
if: shortest PR interval > 120 ms
and 1.75 < P/QRS ratio

2.0
If the criteria for a 2:1 AV block are not fulfilled, an AV dissociation due to block or interference is assumed.
Say:
“with complete AV block”
“idioventricular escape rhythm”
if: QRS duration  120 ms
and heart rate < 40 BPM
Say:
“with complete AV block”
“ accelerated idioventricular escape rhythm,”
“ consider AV junctional rhythm with aberrant ventricular conduction”
if: QRS duration

120 ms
and 40 BPM  heart rate < 60 BPM
Say:
“with block and/or interference in the AV junction”
“accelerated AV junctional rhythm with aberrant ventricular conduction,”
“ consider ventricular tachycardia”
if: QRS duration

120 ms
and 60

heart rate < 100 BPM
Say:
“with block and/or interference in the AV junction”
“AV junctional tachycardia with aberrant ventricular conduction,”
“ consider ventricular tachycardia”
if: QRS duration  120 ms
and heart rate

100 BPM
Say:
“with complete AV block”
“AV junctional escape rhythm”
if: QRS duration < 120 ms
and heart rate < 60 BPM
Say:
“with block and/or interference in the AV junction”
“accelerated AV junctional rhythm”
if: QRS duration < 120 ms
and 60  heart rate < 100 BPM
Say:
“with block and/or interference in the AV junction”
“AV junctional tachycardia”
if: QRS duration < 120 ms
and heart rate

100 BPM