6 ECG, Arrhythmia, ST and QT Monitoring
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Arrhythmia Beat Labels
Arrhythmia beat labels tell you how the monitor is classifying beats.
N = Normal
V = Ventricular Ectopic
S = Supra-ventricular Premature
P = Paced
' = Pacer spike
" = Biventricular Pacer Spike
L = Learning patient's ECG
A = Artifact (noisy episode)
? = Insufficient information to classify beats
I = Inoperative condition (e.g., LEADS OFF)
M = Pause or missed beat
Arrhythmia Status Messages
The monitor displays two types of status messages:
• Rhythm Status Messages -- to indicate the patient's rhythm.
• Ectopic Status Messages -- to indicate the presence of ectopic beats.
These status messages are shown on the right hand side of the primary ECG wave. They are updated
every second, with the exception of the Sinus and Supraventricular (SV) rhythm messages.
The Sinus and SV rhythm messages are updated based on the current heart rate, taking into account
the patient category (adult, pediatric, or neonatal). For the message to change from one rhythm status
to another, the HR must be in the new range for five beats.
If you have basic arrhythmia capability, you will get only messages for the alarms provided with this
level.
Rhythm Status Messages
The label B or E indicates basic (B) or enhanced (E) arrhythmia capability.
Rhythm Status Message Description B or E
Asystole No QRS for 4 consecutive seconds in absence of vent fib or
chaotic signal
B, E
Vent Fib/Tach A fibrillatory wave for 4 consecutive seconds B, E
VTach A dominant rhythm of adjacent Vs and a HR > the V-Tach
Heart Rate Limit
B, E
Sustained VT Ventricular tachycardia rhythm for more than 15 seconds E
Vent Rhythm A dominant rhythm of adjacent PVCs and a HR ≤ the V-Tach
HR Limit
E
Vent Bigeminy A dominant rhythm of N, V, N, V E
Vent Trigeminy A dominant rhythm of N, N, V, N, N, V E
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