8-17
Arrhythmia message Description Category
PVC One PVC detected in normal heartbeats.
Nonlethal
arrhythmia
Couplet Paired PVCs detected in normal heartbeats.
Run PVCs
More than two consecutive PVCs, lower than Vent.
Brady PVCs threshold, and HR lower than Vent Rate
threshold.
Bigeminy A dominant rhythm of N, V, N, V, N, V.
Trigeminy A dominant rhythm of N, N, V,N, N, V, N, N, V.
R on T R on T detected in normal heartbeats.
Missed Beats
At least 3 consecutive Ns, andThe current RR interval is
greater than 1.5 x previous RR interval, andThe next
RR interval is lower than 1.5 x average RR interval,
andHR greater than 100 and the current RR interval is
greater than 1.75 x average RR interval , or HR is
greater than or equal to 100 and the current RR interval
is greater than 1000 ms.
Brady
The average heart rate is lower than the bradycardia
limit.
Tachy
The average heart rate is greater than the tachycardia
limit.
Vent. Rhythm
The consecutive PVCs is greater or equal to Vbrd PVCs
limit, and HR is greater or equal to Vbrd Rate limit but
lower than Vtac Rate limit.
Multif. PVC
Multiform PVCs detected in Multif. PVC's Window
(which is adjustable).
Nonsus. Vtac
Consecutive PVCs (V) is lower than Vtac PVCs limit
but greater than 2, and HR is greater or equal to the
Vtac Rate limit.
Pause
No QRS is detected within the set time threshold of
pause.
Irr. Rhythm
Consistently irregular rhythm (N, irregular RR interval
change is greater than 12.5%)
Afib (for adult only)
P wave is absent and normal beat RR intervals are
irregular.
Pauses/min Pause/min exceeds high limit
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