Welch Allyn Vital Signs Monitor - User Manual - Manual (Page 16)

10 Vital Signs Monitor
Pulse Rate Feature
The Welch Allyn Vital Signs Monitor is capable of determining pulse rate as an adjunct to the blood
pressure measurement and the SpO
2
measurement.
The pulse rate, in beats per minute, will be determined primarily from the SpO
2
measurement
methodology. In the case where SpO
2
is not available, or is disabled, the pulse rate display will be
driven by data from the blood pressure measurement method.
There are two operator selectable alarm limits for the pulse rate. They are PULSE RATE HIGH
LIMIT and PULSE RATE LOW LIMIT. Pulse rates which activate alarm limits are indicated by a
flashing display and a repetitive audible tone.
Should a pulse rate alarm occur when the pulse rate measurement is derived from the blood pres-
sure measurement, no subsequent blood pressure or pulse rate measurements may be made until
the alarm is reset. The alarm may be reset by pressing any button on the Monitor's display.
Should a pulse rate alarm occur when the pulse rate measurement is derived from the SpO
2
mea-
surement, the monitor will indicate an alarm condition (flashing & beeping) while continuing to mon-
itor and display the patient's current SpO
2
% and pulse rate. The alarm will automatically reset
when the patient's condition returns to within the preset alarm parameters.
Should a patient alarm condition for pulse rate occur during SpO
2
monitoring, the operator may
invoke "Silence Mode" by pressing the SILENCE button. This will silence the audible tone (display
will continue to flash), while the practitioner attends to the patient and Monitor. Silence mode
resets automatically after 30 seconds, or when the patient's condition returns to within the preset
alarm parameters. If an alarm limit is violated, subsequent determinations of any type may only be
made after the alarm condition is reset.