38 Chapter 3 Patient Monitoring Welch Allyn Vital Signs Monitor 300 Series
How Changing the Patient Type Affects MAP Defaults
When you cycle power to the monitor, the monitor stores all current settings before
shutting down. It then uses these saved settings when it powers up again. (This does not
affect the factory default settings.)
Whenever you enable or disable MAP for a given patient type—Adult, Pediatric,
Neonatal—the current enabled/disabled setting becomes the default power-up setting for
that patient type.
For example: If the monitor is set to Neonatal and you set MAP Disabled, MAP Disabled
becomes the default setting for neonatal patients until you change the enabled/disabled
setting again.
Enabling and Disabling MAP Measurement
See “MAP Measurement Enable and Disable” on page 25.
STAT Measurement
If the selected interval is STAT, the monitor takes repeated NIBP measurements for 5
minutes, starting a new cycle each time the cuff deflates below safe venous return
pressure (SVRP) for two seconds.
Current cuff pressures are not dynamically displayed during a STAT reading. The message
window displays the NIBP reading from the previous cycle until the current cycle finishes.
(Before the first cycle finishes, the display reads ‘0.’)
Monitoring Pulse Rate
The monitor displays the pulse rate at the end of all NIBP or SpO
2
measurements. It
displays NIBP pulse information only if no SpO
2
reading is available.
If the SpO
2
sensor is connected to the patient during the measurement period, the pulse
amplitude indicator rises and falls in rhythm with the monitored heart rate. The higher the
display rises, the stronger the measured pulse; however, the height of the indicator
display is not mathematically proportional to the volume of the pulse.
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