Frequency
A measurement of alternating current (AC) electricity that indicates how often the current reverses
direction and returns to its original direction each second. The unit of measurement is the hertz
(Hz). To operate or charge its battery, the monitoring system requires power from a wall outlet
providing 100-240 Volts AC (VAC) at a frequency of 50/60 Hz (hertz). See also “Voltage.”
Heart Rate
The number of times the heart beats, usually as a per-minute value.
Monitoring System
The device, described in this home use guide, used to measure SpO
2
and pulse rate for a patient.
Oxygen Saturation
(Saturation)
A measurement of the percentage of oxygen circulating in the patient’s blood. Oxygen saturation
is also identified as SpO
2
or %SpO
2
.
Pulse BPM or Pulse
Rate (PR)
Pulse rate. A measurement of the number of times the heart beats per minute. Pulse rate is also
called heart rate, beats per minute, or BPM.
SatSeconds
TM
This feature of Nellcor
TM
monitoring systems determines whether an alarm occurs if a patient’s
SpO
2
measurement falls outside the preset alarm range. Sometimes a patient’s SpO
2
measurement
falls just slightly or just briefly outside the preset range. In such instances, the patient may not
need medical attention. The SatSeconds
TM
feature looks at these instances and determines if an
alarm needs to be created. Note: This feature is not available for homecare use; when the patient’s
SpO
2
measurement falls outside the preset range, an alarm is created in all instances.
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6
PM100N Home Use Guide
