Masimo Radical Signal Extraction Manual do Operador descarregar pdf (Página 44)

4-4 Radical-7 Signal Extraction Pulse CO-Oximeter Operator’s Manual

Operation

SENSOR TIME REMAINING

The Radical-7 displays the amount of time remaining for SpHb Rainbow Reusable sensors (refer

to Section 8, Rainbow Reusable Sensors) in the lower, right-hand corner of the screen. While a

patient is monitored, the amount of time decreases until the remaining time shows “0 Min”. Refer

to the specific sensor DFU for additional information.

NOTE: Sensor Time will not be displayed for SpHb Rainbow Adhesive Sensors because they

have been designed for single patient use only. they have been designed and labeled for

single patient use only.

The time remaining shows on the display for 120 seconds in the following situations:

 The sensor is connected to the device and the device is turned on.

 The sensor is connected to the patient.

 The sensor is removed from the patient.

Additionally, the device displays the Sensor Time with one audible beep when the remaining

time shows 4 hours, 2 hours, 1 hour and 0 minutes. At “0 Min”, the sensor must be replaced.

NOTE: The sensor will not expire while actively monitoring a patient.

The user can view the remaining Sensor Time by entering the About menu and selecting "More".

When using the Simplified User Interface, select the Next Menu Page icon and select the “?” icon

to view the remaining Sensor Time.

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.

NUMERIC DISPLAY - SpCO

A stable SpCO reading is associated with correct sensor placement, small physiological

changes during the measurement and acceptable levels of arterial perfusion in the patient’s

fingertip (measurement site). Physiological changes at the measurement site are mainly

caused by fluctuations in the oxygen saturation, blood concentration and perfusion. Inaccurate

measurements may be caused by:

■ Levels of methemoglobin approximately 1.5% or above.

■ Intravascular dyes such as indocyanine green or methylene blue.

■ Abnormal hemoglobin levels.

■ Low arterial perfusion.

■ Low arterial oxygen saturation levels.

■ Elevated Total Bilirubin levels.

■ Motion artifact.

NUMERIC DISPLAY - SpMet

A stable SpMet reading is associated with correct sensor placement, small physiological

changes during the measurement and acceptable levels of arterial perfusion in the patient’s

fingertip (measurement site). Physiological changes at the measurement site are mainly

caused by fluctuations in the oxygen saturation, blood concentration and perfusion. Inaccurate

measurements may be caused by:

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