User's Manual

Ultraview Care Network
12-10
The Spacelabs Medical CVA detection filter provides a method of discriminating
between true respiratory effort and cardiac activity. The filter checks for
coincidence between the respiratory and the heart rate. If the rates are the same,
the digital display for respiratory rate changes to CVA, a CVA message appears in
the waveform zone, and an apnea alarm is triggered if the apnea alarm has been
enabled. This minimizes the possibility of apneic episodes being undetected due
to CVA. Episodes of CVA will be reflected as a respiratory rate of zero in the
trends.
If the patient’s respiratory and heart rates are actually identical, you may want to
disable the CVA filter.
Restoring User-Defined Settings
With the Restore Settings feature, you can restore the user-configurable settings
to the defaults previously stored as user settings. User-configurable options are
listed in Setting User-Defined Default Values on page 7-7
Recording Respiration Waveforms
You can print Respiration waveforms and values. Refer to Printing on page 4-7 for
additional information.
Configuring Varitrend 3 Graphs
In Varitrend 3, trends for heart rate and SpO
2
are displayed in the upper half of the
zone. Either the respiration rate trend or the compressed respiration waveform is
displayed in the lower half of the zone.
WARNING:
• If you disable the CVA detection filter, you will not be
alerted to the presence of CVA if it replaces the respiration
waveform.
!
• Module Configuration Manager is an optional feature for some
modules. Your module may not contain this option.
• RESTORE SETTINGS changes the user-configurable settings
for all parameters in the module.
• Once restored, alarm ON/OFF status and alarm limits are reset
to the previously stored user settings.
!
• If the VARITREND ON/OFF key does not appear in the ECG
Display Format menu, your module does not include the
Varitrend option.
To restore user-defined settings:
1 Touch ECG.
2 Touch SETUP.
3 Touch RESTORE SETTINGS.
4 Select YES.
To print Respiration waveforms:
1 Touch RECORD.
2 Touch flashing RESP
parameter key.
To turn Varitrend 3 ON or OFF:
1 Touch ECG.
2 Touch DISPLAY FORMAT.
3 Select VARITREND ON or
OFF.