Oridion Capnostream 20p, Руководство оператора

Страница: 91 / 141

Choosing Trend Parameters
Portable Bedside Capnograph/Pulse Oximeter 89
Choosing Trend Parameters
The device displays the following trend parameters: EtCO
2
, RR, SpO
2
, PR, and IPI. The desired order of the
parameters can be set by the user using the Trend: Display Configuration screen (see Changing Parameters
Order on the Trend Display on page 123 for details). If you do not want to view these parameters in Trend
Reports, choose the BLANK option for some slots in the Trend: Display Configuration screen.
Important Notes Regarding Trend Reports
Please note the following issues regarding trend reports, including on-screen tabular trend reports, printed trend
reports, and downloaded trend reports:
•
Each number displayed in the trend memory is an average of the results for each second over the
sampling period. For example, for a 30-second sampling period, the displayed result each 30 seconds is
an average of the data points for each of the 30 seconds within the sampling period.
•
If an alarm took place anywhere in the sampling period (i.e., at some point during the 30 seconds of a
30-second time period, when data is being recorded every 30 seconds) it will be noted, even if the
averaged number recorded does not indicate a cause for an alarm.
•
“EtCO
2
not available” is generated whenever a CO
2
self-maintenance occurs. This occurs one hour after
turn-on, every 12 hours after that, and after a significant change in temperature or altitude. The CO
2
self-
maintenance lasts approximately 10 seconds. During this process, etCO
2
and other physiological values
are held at their values prior to the CO
2
self-maintenance.
Specific Events as seen in Trend Data

T
O
S
EARCH FOR
S
PECIFIC
E
VENTS IN
T
REND
D
ATA
:
1. Use the cursor in the graphical trend screen to locate an area of interest.
2. Use
ZOOM
to get as close as possible to the specific area.
3. Switch to the Tabular trend display.
4. Use
SCROLL
to find the area of interest.
5. Zoom to minimum resolution to see detailed alarm and event information.
Using the Graphical Trend Screen for Monitoring Patients
It is possible to use the Graphical Trend screen as the main monitoring screen, rather than the Home screen.
Instead of seeing the real time waveforms, the Graphical Trend gives you the ability to easily track changes in
the patient's condition. The real time numeric data is shown on the right hand side of the screen for both the
Trend and Home screens.
When using the Graphical Trend screen as the main monitoring screen, it is important to ensure that the graphs
are updated with the latest data. This will happen automatically as long as the Scroll function has not been used
since you entered the Graphical Trend screen. While in automatic update mode, the screen will automatically
update new data to the right of the yellow cursor line. When the area to the right of the cursor is filled, the
graphs will shift, allowing more data points to be plotted.
If you use the Scroll feature and then want to return to using the Graphical Trend to monitor the patient, simply
go to the Home screen and then select
TREND
again.
Printing the Trend Data
If the optional printer is installed, you can obtain a printout of the trend data that is displayed on the screen by
selecting
PRINT TREND in the Menu Bar.