Fluke-biomedical MPS450 User Manual download pdf (Page 69)

Cardiac Functions

Cardiac Output 2

2-37

reads “0” or “24” on the CO monitor. (To get a reading, the trimpot may have to be

turned all the way in one direction.)

Note

Fluke Biomedical supplies adapters to connect to some nonstandard

catheters. (Please consult the cable price list.) For manufacturers that are

not listed, a “pigtail” may be ordered and wired to cut-off catheters.

Simulating a Cardiac-Output Test

The MPS450 simulates two separate injectate temperatures (an iced solution of 0 °C /

32 °F or a room-temperature solution of 24 °C / 75.2 °F), each flowing at three different

rates (2.5, 5.0, or 10 liters per minute).

Action in the Menu-Control Mode

1. Press the top-menu key labeled CO to display the following LCD screen:

gje038.eps

2. To set the injectate temperature to 0 °C or 24 °C, select INJ to toggle to the desired

setting.

3. To adjust the flow rate, select PREV or NEXT to scroll to the desired setting.

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

temperature/flow setting listed in Table 2-29, and select RUN:

Table 2-29. Numeric Codes for Temperature/Flow Settings

Temperature/Flow Setting Numeric Code

CO OFF 090

CO 0 DEG 2.5 L/M 091

CO 0 DEG 5.0 L/M 092

CO 0 DEG 10.0 L/M 093

CO 24 DEG 2.5 L/M 094

CO 24 DEG 5.0 L/M 095

CO 24 DEG 10.0 L/M 096

Injectate Failure and Left-To-Right Shunt

Injectate failure occurs, for example, when an injector fails to release an injectate in a

continuous manner, a situation caused most often by the human factor of hesitation.

A physiological condition called a left-to-right shunt occurs when the blood detours from

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Fluke-biomedical MPS450 User Manual Page 69