Physio Control LIFEPAK 15, Руководство по эксплуатации

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Chapter 4 | Monitoring
©2007-2015 Physio-Control, Inc. LIFEPAK 15 Monitor/Defibrillator Operating Instructions
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Displaying and Printing Trend Graphs
The trend graph for any active vital sign or ST measurement can be displayed in Channel 2 or 3.
The example in Figure, ST Trend Graph (on page 110), shows the trend graph in Channel 3. Only
two trend graphs can be displayed at a time, but the device collects trend data on all active vital
sign values.
To display trend graphs:
1. Rotate the
SPEED DIAL
to outline Channel 2 or 3, and then press the
SPEED DIAL
to select
the channel. The Channel menu appears.
2. Select
WAVEFORM
, and then select
TREND
.
3. Select
SOURCE
, and then select the desired VS or ST.
4. The default setting for
SCALE
and
RANGE
is
AUTO
. When
AUTO
is used, the monitor
automatically updates the scale so that all values are displayed and all data from Power On
to the present time is visible. If you change scale or range, some data may not be visible
because it is off scale or out of range.
5. Press
HOME SCREEN
. The graph for the selected VS or ST appears in the channel.
Note: To initiate ST trends, you must obtain a 12-lead ECG. The initial ECG provides the
baseline ST measurement and initiates the ST trends feature.
To print trend graphs:
1. Press
OPTIONS
. The Options menu appears.
2. Rotate and then press the
SPEED DIAL
to select
PRINT
.
3. Select
REPORT
, and then select
TREND SUMMARY
.
4. Select
PRINT
. The Trend Summary Report prints graphs of all actively monitored VS and ST
trends.
VS and ST Monitoring Considerations
For best results, consider the following:
•
The ability of the patient to cooperate and be relaxed. Patients who are restless can produce
noisy physiological signals. Noisy signals can result in inaccurately high or low data
measurements.
• The quality of the physiological signal. If the ECG has significant artifact, the HR may have
spurious measurements. Noisy 12-lead ECGs may need to be overridden, and ST
measurements will not be obtained.
•
The expected length of time the patient is to be monitored. VS graphs of the patient
monitored for only a short time (for example, 15 minutes) may not provide enough data to
identify gradual changes in patient condition.
• The patient ECG rhythm. Diagnosis of ST associated ischemia is inhibited by certain ECG
findings such as left bundle branch block and ventricular pacing.