EDAN iM70 - 16.6 Measuring PAWP; 16.6.1 Measurement Procedures

Patient Monitor User Manual Monitoring IBP
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frequently as dictated by your Hospital Procedures Policy.
16.4 Changing the IBP Waveform Ruler
The top, middle and bottom rulers are available for each channel of IBP waveform. Users can
adjust the top, middle or bottom rulers manually:
1.
Open the menu Wave Setup of IBP by clicking on the IBP waveform area.
2.
Select a suitable ruler from the options TopRuler, MidRuler and BotRuler.
16.5 IBP Waveform Overlapping
The monitor can display IBP overlapped waveforms. To set IBP waveform overlapping:
1.
Select Menu > Maintenance > User Maintain > Other Setups, and set IBP Wave
Overlapping to On or Off.
2.
Click the IBP waveform area to show the IBP Wave Setup menu.
3.
Select Add IBP Waves and then select the IBP waves for overlapping from the pop-up list.
A maximum of four overlapping waveforms can be displayed.
4.
After exiting the interface, the main screen will display the overlapped IBP waves. The
flashing label is the main label of the waveform area.
Click the IBP overlapping waveform area on the main screen, and then select
Setup Rulers. The
user can select a suitable ruler for the overlapped waveforms from the options
TopRuler and
BotRuler.
16.6 Measuring PAWP
PAWP, Pulmonary Artery Wedge Pressure, used to assess the cardiac function, is obtained by
introducing a balloon-tipped pulmonary artery flotation catheter into the pulmonary artery. When
the catheter is in one of the smaller pulmonary arteries, the inflated balloon occludes the artery
allowing the monitor to record changes in the intrathoracic pressures that occur throughout the
respiration cycle. The user can view the PAWP measurement result via connected MFM-CMS.
16.6.1 Measurement Procedures
Pulmonary Artery Wedge Pressure (PAWP) values are affected by fluid status, myocardial
contractility, valve and pulmonary circulation integrity. The most accurate PAWP values are
obtained at the end of the respiration cycle when the intrathoracic pressure is fairly constant. You
can use the respiration waveform as a reference when assessing the PAWP waveform, to ensure
constant measurement timing relative to the respiratory cycle.
To start the measurement:
1.
On the standard screen interface, select the PA parameter window to enter its setup menu.
Then, select
Setup > PAWP Activate to open the PAWP measurement window.
2.
Prepare and check the accessories according to your hospital policy.
3.
Wedge the flotation catheter into the pulmonary artery. Then inflate the balloon and pay