SQR/
Freq Ampl
TRI/
Freq Ampl
The frequency and amplitude default settings and choices are the same for the sine,
square and triangle performance waveforms.
Freq:
Frequency default setting 1.0 Hz
0.9 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10 20 30 40 50 60 70 80 90 100
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Ampl:
Amplitude default setting 2.0 mV
2.0 3.0 4.0 5.0 0.2 0.5 1.0
Pulse wave default setting:
A pulse wave is generated at 4 second intervals with an
amplitude of 1mV and width of 20 ms.
Selecting
Arr
branches to:
Arrhythmia Menu
Atr AC Vent
Arrhythmias are divided into Atrial, Atrial Conduction, and Ventricular waveforms. Normal Sinus
Rhythm (NSR) at 80 BPM is the default waveform in this menu. Function keys select the desired
arrhythmia and the MENU key clears the arrhythmia to NSR.
The following are the arrhythmia definitions:
Atrial: Atrial Arrhythmias
SA: Sinus Arrhythmia:
The ECG rate uniformly increases and decreases continuously. The
pattern is cyclic with rates changing in the following order: 60, 70, 80, 90, 100, 90, 80, 70, 60 BPM.
M80: Missing Beat:
Normal Sinus Rhythm is generated at 80 BPM with every 10
th
beat missing.
AFLT: Atrial Flutter:
Varying ECG rates with 12 cycles at 60 BPM for 12 seconds, 9 cycles at 90
BPM for 6 seconds, 15 cycles at 150 BPM for 6 seconds repeating with large P waves at 300 BPM.
This corresponds to ventricular responses of 5:1 for 12 seconds, 3:1 for 6 seconds, and 2:1 for 6
seconds.
AFB: Atrial Fibrillation:
Irregular QRS complexes with no P waves and constantly changing R-R
intervals are generated. The rate varies in a cyclic fashion at 30, 60, 70, 80 and 30 BPM with low
amplitude oscillations on the baseline.
PAT: Paroxysmal Atrial Tachycardia:
NSR is generated at 180 BPM with inverted P waves.
NODL: Junctional Premature Contraction:
NSR is generated at 80 BPM with a short PR interval.
The QRS starts immediately following the P wave.
AC: Atrial Conduction Arrhythmias
AB1: First Degree AV Block:
The QRS
is generated at 80 BPM, the P wave precedes the QRS by
a fixed but prolonged PR interval > 0.2 seconds ( PR interval = 0.26 seconds).
MB1: Second Degree AV Block: Mobitz I: Wenckebach:
The QRS is generated at 80 BPM.
There is a progressive lengthening of the PR interval with intermittent dropped beats. The PR
intervals are 170, 230, and 310 ms.
Minisim 1000 User Manual
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