
7-2
7.2 Safety
WARNING
Use only SpO
2
sensors specified in this manual. Follow the SpO
2
sensor’s
instructions for use and adhere to all warnings and cautions.
When a trend toward patient deoxygenation is indicated, blood samples should be
analyzed by a co-oximeter to completely understand the patient’s condition.
Do not use SpO
2
sensors during magnetic resonance imaging (MRI). Induced
current could potentially cause burns. The sensor may affect the MRI image, and
the MRI unit may affect the accuracy of the oximetry measurements.
Prolonged continuous monitoring may increase the risk of undesirable changes in
skin characteristics, such as irritation, reddening, blistering or burns. Inspect the
sensor site every two hours and move the sensor if the skin quality changes. For
neonates, or patients with poor peripheral blood circulation or sensitive skin,
inspect the sensor site more frequently.
Check if the sensor is in normal condition before monitoring. Do not use the SpO
2
sensor once the package or the sensor is found damaged.
After unplugging the SpO
2
sensor cable from the connector of the monitor, the
system shall display the alarm message "SPO2 SENSOR OFF" and give the
audible alarm.
ES (Electrosurgery) equipment wire and SpO
2
cable must not be tangled up.
Do not apply the sensor on a limb with an intravenous infusion or arterial catheter
in place.
Do not perform SpO
2
monitoring and NIBP measurements on the same limb
simultaneously. Obstruction of blood flow during NIBP measurements may
adversely affect the SpO
2
reading.
Measure the monitor’s leakage current whenever an external device is connected to
the serial port. Leakage current must not exceed 100 mA.
To ensure patient electrical isolation, connect only to other equipment with
electronically isolated circuits.
Do not connect the monitor to a mains outlet with a wall switch or dimmer.
Interfering Substances, such as carboxyhemoglobin, may erroneously increase
SpO
2
readings. The level of increase is approximately equal to the amount of
carboxyhemoglobin. Dyes, or any substance containing dyes, that change usual
arterial pigmentation may also cause the increase of SpO
2
readings.
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