Mindray BeneView T1, Operator'S Manual

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14-11
14.8.2 Setting Up the PAWP Measurement
1. Select [ Start ] in the PAWP measurement window.
2. Wedge the flotation catheter into the pulmonary artery. When the prompt message [ Ready for balloon inflation ]
appears, inflate the balloon and pay attention to PA waveform changes on the screen.
3. When the prompt message [ Ready for balloon deflation ] appears, deflate the balloon. After the measurement
finishes, the PAWP value displays under the PA waveform.
4. Select [ Edit ]
→
[ Confirm ] to save the PAWP value.
5. If you need to start a new measurement, select [ Start ] again.
If the measurement fails or you need to adjust the PAWP value, select [ Edit ] to freeze the waveforms and activate the
[ Adjust ] button.

Select the or beside the [ Adjust ] button to adjust the PAWP value.

Select or beside the [ Adjust ] button to view the frozen waveforms of 40 seconds.

Select [ Confirm ] to save the PAWP value.
WARNING

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.
14.8.3 Understanding the PAWP Setup Menu
Select [ Setup ] to enter the [ PAWP Setup ] menu. In this menu, you can:

Select a ECG lead wave as the first reference wave.

Select a respiration wave as the second reference wave.

Select a sweep speed for the displayed waveform.

Change the size of the PA waveform by adjusting the scale height.
The setting of the [ Sweep ] and [ PA Scale ] is only applied to waveforms on the PAWP screen.