Fluke Biomedical MPS450 - Manual (Page 49)

Cardiac Functions
Arrhythmia Functions
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gje018.eps
3. Scroll to the LCD screen for the desired PVC simulation: PVCs 6/MIN; PVCs
12/MIN; or PVCs 24/MIN.
4. Select RUN. The PVCs-per-minute waveform runs continuously (repeats) until
another arrhythmia selection is made.
Alternatively, in the Numeric-Control Mode, press the number keys for a PVCs-per-
minute waveform according to Table 2-11, and select RUN:
Table 2-11. Numeric Codes for PVCs-Per-Minute Settings
PVCs-Per-Minute Setting Numeric Code
PVCs 6/MIN 021
PVCs 12/MIN 022
PVCs 24/MIN 023
Frequent Multifocal PVCS
A sequence that includes a left-focus PVC followed by normal beats, alternating with a
right-focus PVC followed by normal beats.
Frequent multifocal PVCs are initiated by a number of different ectopic pacemakers in
the ventricles, with events occurring at least five times per minute, and usually more
often.
The MPS450 simulates a continuous, repeating waveform that alternates between a
type-1 (left-focus) PVC followed by three normal beats, and a type-2 (right-focus) PVC
followed by three normal beats.
Action in the Menu-Control Mode
1. Press the top-menu key labeled ARRHY.
2. Select VENT.
3. Scroll to the LCD screen FREQ MULTIFOCAL.
4. Select RUN. The frequent-multifocal-PVC waveform runs continuously (repeats)
until another arrhythmia selection is made.
Alternatively, in the Numeric-Control Mode, press the number keys 024, and select
RUN.
Bigeminy and Trigeminy
Two sequences: a PVC followed by a normal beat, or a PVC followed by two normal
beats.
Bigeminy—also called a fixed coupling or bigeminal rhythm—is a type of PVC in which
a beat with a normal QRS complex alternates with a PVC; in other words, every other
beat is premature. In trigeminy, which is similar to bigeminy, a PVC appears after every
two normal QRS complexes.