Handheld Pulse Oximeter (Reorder No. 36403) 25
5. TAKE A MEASUREMENT (Continued)
5.1.4 Other factors
a. High-frequency electrosurgical interference from
external devices, including debrillators.
b. Placement of a sensor on an extremity that currently
has installed a blood pressure cuff, arterial catheter, or
intravascular line.
c. The patient has hypotension, severe vasoconstriction,
severe anemia, or hypothermia.
d. An arterial occlusion proximal to the sensor.
WARNINGS!
• Use only SpO
2
sensors provided by manufacturer. Other
SpO
2
sensors may cause improper performance.
• Do not use an SpO
2
sensor with exposed optical
components.
• Excessive patient movement may cause inaccurate
measurements.
• Tissue damage can be caused by incorrect operation or
misusing sensor. Inspect the sensor site to ensure the
skin’s integrity and the adhesion position of the sensor
is correct. More frequent inspection should be taken if
necessary.
• Loss of pulse signal can occur in any of the following:
a. The sensor is too tight.
b. There is excessive illumination from light sources
such as a surgical lamp, a bilirubin lamp, or sunlight.
c. A blood pressure cuff is inated on the same extremity
as the one to which an SpO
2
sensor is attached.
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