Fluke-biomedical MPS450 User Manual download pdf (Page 70)

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:

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 125 126

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Fluke-biomedical MPS450 User Manual Page 70