PI is a relative reading of pulse strength at the monitoring site. PI is a numerical value that
indicates the strength of the IR (infrared) signal returning from the monitoring site. PI display
ranges from .02 percent (very weak pulse strength) to 20 percent (very strong pulse strength). PI is
a relative number and varies between monitoring sites and from patient to patient, as physiological
conditions vary.
During sensor placement, the PI can be used to evaluate the appropriateness of an application
site, looking for the site with the highest PI number. Placing the sensor at the site with the
strongest pulse amplitude (highest PI number) improves performance during motion. Monitor the
trend of the PI for changes in physiological conditions.
Pulse rate frame
The pulse rate frame, located in the upper right of the Home tab, displays data, information, and
controls used in reading pulse rates.
Typically, the displayed pulse rate is derived from the SpO2 sensor. If SpO2 is not available, the
pulse rate is derived from NIBP.
WARNING Inaccurate measurement risk. Pulse rate measurements generated
through the blood pressure cuff or through SpO2 are subject to artifact and might
not be as accurate as heart rate measurements generated through ECG or through
manual palpation.
Monitor profile
Spot Check and Triage profiles
Configure pulse rate alarms
Follow these steps to set alarm limits for pulse rate.
Directions for use Patient monitoring 83
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