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Using the Monitor
measurements. Always remove oximetry devices and
attachments from the MRI environment before
scanning a patient.
• The use of cardio-green and other intravascular dyes at
certain concentrations may affect the accuracy of the
SpO
2
measurement.
•The SpO
2
function is calibrated to read functional
arterial oxygen saturation. Significant levels of
dysfunctional hemoglobins such as carboxyhemoglobin
or methemoglobin may affect the accuracy of the SpO
2
measurement.
• The use of accessories, transducers, and cables other
than those specified may result in increased emission
and/or decreased immunity and inaccurate readings of
the Monitor.
• As with any clip-on sensor, pressure is exerted. The
clinician should be cautious in using a clip-on sensor on
patients with compromised circulation (e.g., because of
peripheral vascular disease or vasoconstricting
medications).
• Do not perform any testing or maintenance on a sensor
while it is being used to monitor a patient.
• Bright light sources (e.g., infrared heat lamps, bilirubin
lights, direct sunlight, operating room lights) may
interfere with the performance of the SpO
2
function.
To prevent such interference, cover the sensor with
opaque material.
General Notes
• A patient’s vital signs may vary dramatically during the
use of cardiovascular agents such as those that raise or
lower blood pressure or those that increase or decrease
pulse rate.
• The PRO Monitor that is labeled with MASIMO SET
®
Technology is compatible only with MASIMO SET
®
sensors.
• Software development, software validation, and Risk and
Hazard Analysis has been performed to a registered
quality system.
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