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4-2 Radical-7 Signal Extraction Pulse CO-Oximeter Operator’s Manual
4
GENERAL SETUP AND USE (CONTINUED)
10. Verify that the patient alarms are functional by setting the high and low SpO
2
, SpMet,
SpCO, SpHb, PI, PVI, and pulse rate alarm limits beyond the patient readings.
 An alarm tone sounds.
 The violated alarm limit and reading flash on the display.
 The red alarm indicator flashes on the Docking Station (standalone operation).
11. Verify the sensor alarms are functional by removing the sensor from the sensor site.
 "Sensor Off" appears in the message area of the graphic display.
 The alarm tone sounds.
 The alarm indicator flashes.
 Disconnect the sensor from the patient cable or instrument.
 Confirm that "Sensor Off" appears in the message area of the graphic display.
12. Verify alarm silence operation.
 Create an alarm condition by lowering the SpO
2
or pulse rate high alarm
limits beyond the patient readings.
 Press the Alarm Silence button.
 The alarm tone ceases for the displayed amount of time.
 Perform the above steps for the SpCO and SpMet alarm limits.
13. To begin patient monitoring:
 Adjust the alarm limits.
 Adjust the alarm volumes.
 Adjust the pulse beep volume.
14. Verify the sensor is on correctly and that the measured data is appropriate, see
Section 4, Successful Monitoring.
15. Monitor the patient.
16. After monitoring is complete, remove the sensor from the patient and store or dispose of
the sensor according to governing rules. See the Directions for Use of the sensor.
17. Press and hold the Power/Standby Button for 2 seconds to turn the instrument off.
Successful Monitoring
The following general points will aid in ensuring Pulse CO-Oximetry monitoring success.
Place the sensor on a site that has sufficient perfusion and provides proper alignment of
the LEDs and detector.
Place the sensor on a site that has unrestricted blood flow.
Do not secure a sensor with tape.
Do not select a site near potential electrical interference (electrosurgical unit, for example).
Read the sensor Directions for Use for proper sensor application.
NUMERIC DISPLAY - SpO
2
Stability of the SpO
2
readings may be a good indicator of signal validity. Although stability
is a relative term, experience will provide a good feeling for changes that are artifactual or
physiological and the speed, timing, and behavior of each. The stability of the readings over
time is affected by the averaging mode being used. The longer the averaging time, the more
stable the readings tend to become. This is due to a dampened response as the signal is
averaged over a longer period of time than during shorter averaging times. However, longer
Operation
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