82 Monitoring and Measurements Welch Allyn 1500 Patient Monitor
Taking a CO measurement
1. Insert the catheter and prepare injectate solution in accordance with the instructions
provided by the manufacturer.
2. On the monitor make the settings and enter the computation constant (see previous
page).
3. The blood temperature is monitored and when the temperature is stable, Ready is
indicated at the top of the screen.
In manual mode, (see the mode parameter in“Cardiac output settings” on
page 80), a start button is positioned in the lower right of the screen. The Ready
indication is given when this is selected.
Real-time blood
temperature
Injectate temperature
See Note below
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