MPS450
Operators Manual
2-38
the systemic (body) circulation to the pulmonary (lung-related) circulation. In other
words, the blood has been shunted from the left side of the heart to the right side, through
an abnormal aperture, such as a defect in the septum of the heart, or patient ductus
arteriosus (the persistence after birth of the open lumen between the aorta and the
pulmonary artery).
The MPS450 simulates both injectate-failure and left-to-right-shunt curves at either 0
°
C
or 24
°
C.
Action in the Menu-Control Mode
1.
To simulate a cardiac-output test involving either a faulty injectate (as if the injectate
alternately stops and starts), or a left-to-right-shunt condition, press the top-menu key
labeled
CO
.
2.
To set the injectate temperature to 0
°
C or 24
°
C, select
INJ
to toggle to the desired
setting.
3.
Scroll to the FAULTY INJ screen, or to the L/R SHUNT screen.
4.
Select
RUN
. On the LCD screen, RUNNING flashes while the simulation is active.
To repeat a simulation, select
RUN
again.
5.
To terminate a cardiac-output simulation, select
END
.
Alternatively, in the Numeric-Control Mode, press the number keys for a combined
condition/temperature simulation listed in Table 2-30, and select
RUN
:
Table 2-30. Numeric Code for Condition/Temperature Setting
Condition/Temperature Setting
Numeric Code
FAULTY INJ 0 DEG
097
FAULTY INJ 24 DEG
099
L TO R SHUNT 0 DEG
098
L TO R SHUNT 24 DEG
100
Simulating Output From a Calibrated Pulse Signal
The MPS450 sends a waveform to test the calibration of a cardiac-output monitor,
simulating an injectate temperature of either 0
°
C or 24
°
C and a step change of 1.5
°
C
for 1 second.
Action in the Menu-Control Mode
1.
Press the top-menu key labeled CO.
2.
To set the injectate temperature to 0
°
C or 24
°
C, select
INJ
to toggle to the desired
setting.
3.
Select
PREV
or
NEXT
to scroll to the CAL PULSE screen.
4.
Select
RUN
. On the LCD screen, RUNNING flashes while the simulation is active.
To repeat the simulation, select
RUN
again.
5.
To terminate the simulation, select
END
.
Alternatively, in the Numeric-Control Mode, press the number keys for a calibration
setting listed in Table 2-31, and select
RUN
:
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