Patient Monitor User’s manual
12-5
Select【Wave Scale】in the IBP waveform setting menu, and you can select
【Auto】or【Manual】. When selecting【Manual】, you can adjust the position
of upper scale and lower scale manually. While selecting【Auto】, the monitor
will adjust the wave scale according to actual IBP waveform range
automatically.
Setting High Resolution Cursor
It is suggested to use the high resolution cursor when you want to scale the
IBP waveform more accuracy. Select【High Res. Cursor】in the IBP waveform
setting menu, and adjust the position of high resolution cursor as required.
The high resolution cursor will be displayed on IBP waveform at the same
time.
12.6 Calculating Cerebral Perfusion Pressure
The monitor can calculate the difference between mean arterial pressure(ART)
and the intracranial pressure(ICP). The difference is cerebral perfusion
pressure , which is labeled CPP. Therefore, the CPP value will be displayed on
the screen only when the ART and ICP are displayed at the same time.
12.7 Zeroing the Pressure Transducer
To avoid inaccurate pressure readings, the monitor requires a valid zero. Zero
the transducer in accordance with your hospital policy (at least once per day).
You must perform a zero:
——when you use a new transducer or tubing;
——every time you reconnect the transducer cable to the monitor;
——if you think the monitor’s pressure readings are not correct;
——when the monitor is restarted.
Procedure of the IBP Transducer Zero:
1. Turn off patient stopcock (3-way stopcock 2) before you start zeroing.
2. The transducer must be vented to atmospheric pressure before zeroing.
3. The transducer should be placed at the same level with the patient heart,
approximately mid-axially line.