Performance Considerations - Nellcor N-200 Operator's Manual

NELLCOR Sensors

PERFORMANCE CONSIDERATIONS

Always select an appropriate sensor, apply it as directed, and
observe all warnings and cautions.
If ambient light affects performance, ensure that the sensor is
properly applied, and cover the sensor site with opaque
material. Failure to do so may result in inaccurate
measurements. Light sources that can affect performance
include surgical lights (especially those with a xenon light
source), bilirubin lamps, fluorescent lights, infrared heating
lamps, and direct sunlight.
If patient movement presents a problem, verify that the sensor
is properly and securely applied; move the sensor to a less
active site; use an adhesive sensor that tolerates some patient
motion; or use a new sensor with fresh adhesive backing.
If the patient is unavoidably active, consider using C-LOCK
ECG synchronization. If this is not possible, consider using
Mode 3 (refer to "Oximetry Operating Modes" in the Guide to
Operation section).
If poor perfusion affects performance, consider using an
OXISENSOR R-15 adult nasal sensor or a NELLCORRS-10
reflectance sensor. The R-15 obtains measurements from an
artery supplied by the internal carotid, the nasal septal
anterior ethmoid artery; therefore, the R-15 may obtain
measurements during low peripheral perfusion. The RS-10
obtains measurements from the forehead or temple, areas that
may be spared when peripheral perfusion is poor.
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