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Operator's Manual English 91
6. Performance Considerations
6.1. Overview
This chapter contains information about optimizing the performance of the INVOS™
patient monitor (the “monitoring system”).
•
Safety Reminders, page 91
•
Patient Conditions, page 91
•
Sensor Use Considerations, page 91
•
EMI (Electromagnetic Interference), page 92
6.2. Safety Reminders
Warning: The use of accessories, sensors, and cables other than those specified may result
in poor performance of the monitoring system and increased electromagnetic emissions or
decreased electromagnetic immunity of the monitoring system.
Warning: Monitoring system readings can be affected by certain patient conditions. Refer
to Patient Conditions, page 91.
6.3. Patient Conditions
Certain patient conditions can cause poor performance of the monitoring system:
•
Cardiogreen, indigo carmine, methylene blue, or other intravascular dyes
•
Carboxyhemoglobin or other dyshemoglobins
•
Hemoglobinopathies
•
Conjugated hyperbilirubinemia (direct)
•
Myoglobin (Mb), hemoglobin from muscular tissue, in the blood
•
Dark skin pigment
•
Externally applied coloring agents (dye, pigmented cream)
6.4. Sensor Use Considerations
Select an appropriate INVOS™ rSO
2
sensor, apply it as directed, and observe all warnings
and cautions in the Instructions for Use accompanying the sensor.
A variety of sensor use situations can cause poor measurement performance, including
incorrect site selection, patient preparation, and sensor placement. Refer to the sensor
Instructions for Use for detailed information.
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