Welch Allyn Means ECG Physicians Manual for CP Series Electrocardiographs - User Manual - Manual (Page 36)

MEANS Physicians Manual
Welch Allyn
36
artificial pacemaker? yes group 1
no
non-dominant complexes? yes group 2
no
atrial flutter? yes group 3
no
irregular rhythm?
no yes
group 4
yes P/QRS

0.15? P/QRS

0.15? yes group 8
no no
group 9 yes paroxysms?
irregular rhythm? no
no yes
group 5
yes 0.15 < P/QRS

1.0 and 0.15 < P/QRS

0.9 and yes group 10
PR range > 60 ms? PR range  30 ms?
no no
group 6
yes P/QRS > 1.0 and 0.15 < P/QRS

0.9 and yes group 11
PR range

30 ms? PR range > 30 ms?
no no
group 7
yes P/QRS > 1.0 and 0.9 < P/QRS  1.2 and yes
group 12
PR range > 30 ms? PR range > 30 ms?
no no
P/QRS > 1.2 and yes group 13
PR range > 30 ms?
no
P/QRS > 1.0 and yes group 14
PR range  30 ms?
no
group 15
Figure 1 . Structure of the decision tree for rhythm classification.