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4-2 Radical-7 Color Display Signal Extraction Pulse Oximeter Operator’s Manual Radical-7 Color Display Signal Extraction Pulse Oximeter Operator’s Manual 4-34-3

operation

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 align-

ment of the LED’s and photodetector.

■ 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

Stability of the SpO

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

averaging times delay the response of the oximeter and reduce the measured variations

of SpO

and pulse rate.

MASIMO SENSORS

Before use, carefully read the Masimo sensor Directions for Use.

Use only Masimo sensors for oximetry measurements.

Tissue damage can be caused by incorrect application or use of a sensor, for example by

wrapping the sensor too tightly. Inspect the sensor site as directed in the sensor Directions

for Use to ensure skin integrity and correct positioning and adhesion of the sensor.

CAUTIONS

■ DO NOT USE DAMAGED SENSORS. DO NOT USE A SENSOR WITH EXPOSED

OPTICAL OR ELECTRICAL COMPONENTS. DO NOT IMMERSE THE SENSOR

IN WATER, SOLVENTS, OR CLEANING SOLUTIONS (THE SENSORS AND CON-

NECTORS ARE NOT WATERPROOF). DO NOT STERILIZE BY IRRADIATION,

STEAM, AUTOCLAVE OR ETHYLENE OXIDE UNLESS OTHERWISE INDICATED

IN THE SENSOR DIRECTIONS FOR USE. SEE THE CLEANING INSTRUCTIONS

IN THE DIRECTIONS FOR USE FOR ALL MASIMO REUSABLE SENSORS.

■ DO NOT USE DAMAGED PATIENT CABLES. DO NOT IMMERSE THE PATIENT

CABLES IN WATER, SOLVENTS, OR CLEANING SOLUTIONS (THE PATIENT

CABLE CONNECTORS ARE NOT WATERPROOF). DO NOT STERILIZE BY

IRRADIATION, STEAM, AUTOCLAVE OR ETHYLENE OXIDE.

NUMERIC DISPLAY - PULSE RATE

The Pulse Rate displayed on the Radical-7 Pulse CO-Oximeter may differ slightly from the

heart rate displayed on ECG monitors due to differences in averaging times. There may

also be a discrepancy between cardiac electrical activity and peripheral arterial pulsation.

Significant differences may indicate a problem with the signal quality due to physiological

changes in the patient or one of the instruments or application of the sensor or patient

cable. The pulsations from intra-aortic balloon support can cause the pulse rate displayed

on the Pulse CO-Oximeter to be significantly different than the ECG heart rate.

10. Verify that the patient alarms are functional by setting the high and low SpO

, SpMet,

SpCO 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 oximeter.

 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

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 oximeter off.

operation

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