Nibp preparation – Welch Allyn 300 Series Vital Signs Monitor - User Manual User Manual
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Chapter 3 Patient Monitoring
Welch Allyn Vital Signs Monitor 300 Series
NIBP Preparation
Before you start any NIBP measurement, always follow the steps described in
these procedures:
•
“Changing the Target Pressure”
on page 30
•
•
“Positioning the Cuff”
on page 31
Changing the Target Pressure
Follow these steps to change the target pressure (default initial pressure for cuff inflation)
for the current patient type:
1.
Press
until the message window displays TARGET PRESSURE.
The SYS window displays the current setting for initial inflation pressure.
2.
Press
or
to raise or lower the preset pressure value to the target level.
To set the displayed pressure level and return to normal operation, either do nothing
for 10 seconds or press any button other than
or
. If you press a function button
(such as
), the monitor returns to normal operation with that function (
) activated.
If the following actions and conditions occur in sequence, monitor behavior is as follows,
which differs from what is described in
“Changing the Target Pressure”
.
Action 1. You select a nondefault target pressure.
Action 2. You start an NIBP measurement.
Condition 1. The pump reaches the target pressure and the pressure starts to
bleed off.
Condition 2. The pressure bleed-off is interrupted (motion artifact or NIBP
start/stop button press) and the measurement cycle does not complete.
Action 3. You select the default target pressure.
Action 4. You restart the NIBP measurement.
Under these conditions, the monitor does not use the default target pressure; instead, it
uses the target pressure set in Action 1 above.
•
Following a successful NIBP measurement, the monitor adjusts subsequent NIBP
attempts to pump up to the lowest target that works.
•
Following an unsuccessful measurement, however, the monitor increases target
pressure and then pumps up for one, two, or three attempts before it stops.
Note
Target pressure is a nominal starting point. If it is too low to take a measurement,
the monitor takes another measurement using a higher initial pressure.