Performance Considerations
8-2
Service Manual
WARNING:
Failure to cover the sensor site with opaque material when operating under
high ambient light conditions may result in inaccurate measurements. Pulse
oximetry readings and pulse signals can be affected by certain environmental
conditions, sensor application errors, and certain patient conditions.
Inaccurate Sensor Measurement Conditions
A variety of conditions can cause inaccurate sensor measurements.
•
Incorrect application of the recommended sensor
•
Placement of the recommended sensor on an extremity with a blood pressure cuff,
arterial catheter, or intravascular line
•
Ambient light
•
Failure to cover the sensor site with opaque material when operating under high
ambient light conditions
•
Excessive patient movement
•
Dark skin pigment
•
Intravascular dyes or externally applied coloring, such as nail polish or pigmented
cream
Signal Loss
Loss-of-pulse signal can occur for several reasons.
•
Recommended sensor applied too tightly
•
Inflation of a blood pressure cuff on the same extremity as the attached
sensor
•
Arterial occlusion proximal to the recommended sensor
•
Poor peripheral perfusion
Recommended Usage
Select an appropriate recommended sensor, apply it as directed, and observe
all warnings and cautions presented in the
Instructions for Use
accompanying
the sensor. Clean and remove any substances such as nail polish from the
application site. Periodically check to ensure the recommended sensor remains
properly positioned on the patient.
Summary of Contents for Nellcor GR101704
Page 1: ...Service Manual Nellcor Bedside Respiratory Patient Monitoring System...
Page 8: ...Page Left Intentionally Blank vi...
Page 32: ...Page Left Intentionally Blank 2 14 Service Manual Product Specifications...
Page 46: ...Page Left Intentionally Blank 3 14 Service Manual Theory of Operations...
Page 54: ...Page Left Intentionally Blank 4 8 Service Manual Product Overview...
Page 114: ...Page Left Intentionally Blank 7 18 Service Manual Trend Data Access...
Page 120: ...Page Left Intentionally Blank 8 6 Service Manual Performance Considerations...
Page 168: ...Page Left Intentionally Blank 10 46 Service Manual Modification and Testing...
Page 192: ...Repair 12 4 Service Manual Figure 12 2 Exploded View of Internal Components...
Page 232: ...Page Left Intentionally Blank 12 44 Service Manual Repair...
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