Invasive Pressures Menu; Px Setup Menu - GE Healthcare B30 User's Reference Manual

Invasive Pressures menu

Invasive
Pressures
Zero Pressures Opens a menu to zero both pressures or one of them.
Ventilation Mode Respiration causes artifacts in invasive pressures. At the end of expiration the artifact is at its
smallest. Select Spont for spontaneous respiration and Contr for controlled ventilation.

Px Setup menu

Label Start-up labels are Art and CVP. Other labels are P1, P2, PA, RAP, RVP, LAP, ICP and ABP.
Assigning the appropriate label automatically changes other pressure settings accordingly.
Scale Scales are assigned by the monitor when the channel is labeled. Scales can also be individually
adjusted between 10 and 300 mmHg in steps of 10.
Digit Format With the numeric display format you can choose either the Systolic/Diastolic numbers (S/D) or
the Mean pressure value (Mean) in large size to the screen. You can also choose all values (S/D/
M) to the screen. If the label is ICP, also the CPP selection is available (see also page 14-7).
Response Use the ComWheel to change the invasive blood pressure averaging time. The available values
are Normal and B-TO-B (beat-to-beat). With selection Normal, normal averaging is used.
Depending on the label, the values are updated approximately every five seconds. With
selection B-TO-B, no averaging is used and the values of the last detected pulse are displayed.
These values can change up to three times per second. This feature is useful when it is
necessary to detect fast pressure changes. NOTE: This setting affects only the displayed
values, not the averaging of invasive pressure trends.
Filter FrequencyMeasured signal is filtered to remove noise and artifacts. Use the ComWheel to adjust the filter
between 4 and 22 Hz.
HR Source If the ECG signal is affected by too much noise for a reliable heart rate calculation, heart rate
can be calculated mechanically from the pressure (Art) or plethysmographic pulse waveform.
The selected heart rate source is displayed above the numerical display of the heart rate. The
color of the heart rate is the same as that of the source parameter. Auto selection prioritizes
the heart rate calculation in a specified order: ECG (the lead with highest R-wave), pressure
(Art), and plethysmographic pulse waveform.
PX Alarm Alarms can be adjusted in this menu or in the Alarms Setup menu which opens by pressing the
Alarms Setup
key.
Invasive blood pressure
14-5