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3. Select Start.
4. Inflate the balloon and pay attention to PA waveform changes on the screen when the prompt message
Ready For Balloon Deflation appears.
5. Deflate the balloon when the prompt message Ready For Balloon Deflation appears. If the PA waveform
is stable yet the monitor still not show the prompt message Ready For Balloon Deflation, select the
Freeze to freeze the waveform, and deflate the balloon.
6. Select Accept to save the PAWP value.
7. If you need to start a new measurement, repeat the step 3 to step 6.
If the measurement fails or you need to adjust the PAWP value, you can use the following buttons to adjust the
PAWP waveform and measurement.
â– Select the up or down arrow button to adjust the PAWP value.
â– Select the left or right arrow button to view the frozen waveforms of 40 seconds.
â– Select Accept to save the PAWP value.
• Prolonged inflation can cause pulmonary hemorrhage, infarction or both. Inflate the balloon for the
minimum time necessary to get an accurate measurement.
• If the PAWP is greater than the PA (systolic), deflate the balloon and report the incident in
accordance with hospital policy. Because the pulmonary artery could be accidentally ruptured, and
the PAWP value derived will not reflect the patient’s hemodynamic state, but will merely reflect the
pressure in the catheter or balloon.
• If the flotation/thermodilution catheter drifts into the wedge position without inflation of the
balloon, the PA waveform assumes a wedged appearance. Take appropriate action, in accord with
standard procedures, to correct the situation.
• The PA alarm is turned off automatically when the monitor enters the PAWP screen.
16.7.4 Setting the Waveforms of the PAWP Screen
On the PAWP screen, select Setup to enter the PAWP Setup menu. In the PAWP Setup menu, you can make the
following settings:
â– Select Reference Waveform 1 to set an ECG lead wave as the first reference wave.
â– Select Reference Waveform 2 to set a respiration wave as the second reference wave.
â– Select Speed to set a sweep speed for the displayed waveforms on the PAWP screen.
â– Select Scale to set the size of the PA waveform on the PAWP screen.
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