Welch Allyn Means ECG Physicians Manual for CP Series Electrocardiographs - User Manual - Manual (Page 48)

MEANS Physicians Manual
Welch Allyn
48
3.11 Group 8: Irregular rhythms with P/QRS

0.15
Say: “atrial fibrillation with slow mean ventricular response”
if: heart rate < 50 BPM
Say:
“atrial fibrillation with normal mean ventricular response”
if: 50

heart rate < 100 BPM
Say:
“atrial fibrillation with rapid mean ventricular response”
if: 100

heart rate < 180 BPM
Say:
“atrial fibrillation with very rapid mean ventricular response”
if: heart rate  180 BPM
Say:
“ with long RR intervals”
if: there is an RR interval > 1.6 s
3.12 Group 9: Rhythms with paroxysmal acceleration or deceleration
of ventricular rate
The program defines a paroxysmal acceleration (“run”) as a sequence of three or more
dominant complexes with a rate that exceeds the inherent rate of the subsidiary pacemaker
by 40%. Once a run has been detected and classified, the complexes are discarded. The
remaining rhythm, which may be perfectly regular, is classified separately.
Say: “ with run of dominant complexes”
if: there is a run
and run rate < 140 BPM
Say:
“ with episode of paroxysmal junctional tachycardia”
if: there is a run
and 140 < run rate

160 BPM
Say:
“ with episode of paroxysmal atrial tachycardia”
if: there is a run
and run rate > 160 BPM
An arrest is defined as a transient disturbance in impulse formation giving rise to an RR interval which is at least 50%
longer than the average RR interval and has a duration of at least 2 s.
Say:
“ with ventricular arrest”
if: there is an arrest