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Appendix C —Arrhythmia and ST Analysis
Cautions and Warnings
!
WARNING !
• Physiological variations in the patient population generate a
nearly infinite range of possible ECG waveform morphologies.
In some cases, the 8100E Series may occasionally not alarm or
alarm inappropriately for some arrhythmia waveforms. High risk
patients must be kept under close surveillance.
• The monitor does not report the presence of atrial or supraventricular arrhythmia events.
• The accurate measurement range for arrhythmia beat detection
is 20 to 250 beats per minute. The monitor reports ECG heart
rates from 250 to 300 beats per minute only when the
arrhythmia feature is turned off. The arrhythmia feature is not
intended for use with neonates with high heart rates.
• The presence of tall T waves (greater than 80% of the R wave)
may be counted as double beats resulting in a heart rate twice
the actual rate.
!
CAUTION !
• The nGenuity arrhythmia analysis algorithms are only intended
to detect ventricular arrhythmias.
• Always monitor patients with a pacemaker very closely, since
the nGenuity monitor may count at the pacemaker rate during
cardiac arrest or some arrhythmias.
Criticare Systems, Inc.
nGenuityTM 8100E Series Operator Manual
Page C-5