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WARNINGS
• Refer to the instrument’s Instructions for Use and the accompanying SpO2Sensor
Compatibility Sheet to find out which sensors have been validated for use with
your instrument. Use only validated sensors.
• Unapplied sensors might cause readings. To avoid misdiagnosis, verify sensor is
applied to patient correctly.
• The M1131A, M1132A, and M1133A sensors are contraindicated for patients
with allergic reactions to adhesive.
• Do not reuse. Single patient use only. Any sensor showing signs of damage
or alteration must not be used for further patient monitoring; instead, dispose of it
using proper disposal procedures (see below).
• Heavy dirt can be removed with a dry or damp cloth (M1131A Sensor only).
• Protect the connector from contact with any liquid.
• At elevated ambient temperatures, patient skin could be severely burned after
prolonged sensor application at sites that are not well perfused. To prevent this
condition, be sure to check patient application sites frequently. All listed sensors
operate without risk of exceeding 41°C on the skin if the initial skin temperature
does not exceed 35°C.
• Make sure you apply the sensor according to the instructions above at the
preferred application site. Failure to do so can cause inaccurate measurements.
• To avoid venous pulsation, obstructed circulation, pressure marks, pressure
necrosis, artifacts and inaccurate measurements, make sure you are using a sensor
of the correct size and that the sensor is not too tight. If the sensor is too loose, it
might compromise the optical alignment or fall off. If the sensor is too tight,
because the application site is too large or becomes too large due to edema,
excessive pressure may be applied. This can result in venous congestion distal
from the application site, leading to interstitial edema, hypoxia and tissue
malnutrition.
• Where possible the application site for the sensor should be an extremity free of
arterial catheters, blood pressure cuffs, or intravascular infusion lines.
• Avoid sites subject to excessive motion. Try to keep the patient still, or move the
sensor to a site with less motion.
• Using a M1134A sensor may compromise measurement performance on active
patients (sensor may become dislodged more easily). On patients with significant
motion use M1133A sensors instead.
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