Sensors
PERFORMANCE CONSIDERATIONS
WARNING: Pulse oxirnetry readings and pulse signal can be
affected by certain ambient environmental conditions, sensor
application errors, and certain patient conditions.
Inaccurate measurements can be caused by:
incorrect application of
the sensor
placement of the sensor on an extremity with a blood
pressure cuff, arterial catheter, or intravascular line
ambient light
prolonged patient movement
Loss-of-pulse signal can occur for the following reasons:
o
the seiisor is too tight
a blood pressure cuff is inflated on the same extremity as
the one with the sensor attached
there is arterial occlusion
proximal to the sensor
Use only Nellcor sensors
and sensor cables.
Select an appropriate sensor, apply it as directed, and observe all
warnings and cautions presented in the directions for use
accoinpanying the sensor. Clean and remove any substances
such as nail polish
from the application site. Periodically check
to ensure that the sensor remains properly positioned on the
patient.
WARNING:
Tissue damage can be caused by incorrect
application or
duration of use of an SpOz sensor. Inspect
the
sensor site as directed
in
the sensor directions for use.
High ambient light sources such as surgical lights (especially
those with a xenon light source), bilirubin lamps, fluorescent
lights, infrared heating lamps, and direct
su~iliglit can interfere
with the performance of an
SpOz sensor. To prevent interference
from ambient light, ensure
that the sensor is properly applied, and
cover the sensor site with opaque material.
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