11-11
11.3.2 Precautions
WARNING
z The pulse wave from the MS-7 module must NOT be used for apnea monitoring.
z As a trend towards patient deoxygenation is indicated, blood samples should be
analyzed by a laboratory co-oximeter to completely understand the patient’s
condition.
z If an alarm condition (other than exceptions listed herein) occurs in the Alarm
Sound Off status, the monitor only gives visual alarm symbols.
z Measure the monitor’s leakage current whenever an external device is
connected to the serial port. Leakage current must not exceed 100
microamperes.
z To ensure patient electrical isolation, connect only to other equipment with
electronically isolated circuits.
z Do not connect to an electrical outlet controlled by a wall switch or dimmer.
z Carefully route patient cabling to reduce the possibility of patient entanglement
or strangulation.
z Interfering Substances: Carboxyhemoglobin may erroneously increase readings.
The level of increase is approximately equal to the amount of
carboxyhemoglobin present. Dyes, or any substance containing dyes, that
change usual arterial pigmentation may cause erroneous readings.
z Do not use this instrument and the sensors during magnetic resonance imaging
(MRI). Induced current could potentially cause burns. The monitor may affect
the MRI image, and the MRI unit may affect the accuracy of the oximetry
measurements.
z The SpO2 value might be overestimated in the presence of Hb-CO, Met-Hb or
dye dilution chemicals.
z Verify sensor cable fault detection before beginning monitoring. Unplug the
SpO2 sensor cable from the connector. The screen displays the prompt
information “SPO2 SENSOR OFF” and the audible alarm is activated.
z Do not use the supplied sterile SpO2 sensors if the packaging or the sensor is
damaged. Return them to the distributor or manufacturer.
z Do not perform SpO2 and NIBP measurements on the same limb
simultaneously. Obstruction of blood flow during NIBP measurements may
adversely affect the reading of the SpO2 value.
z 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.
Change the application site every four hours. For neonates or patients with poor
peripheral blood circulation or sensitive skin, inspect the sensor site more
frequently.
NOTE
z Place the SpO2 sensor cable at the backside of the patient hand. Make sure the
patient nail is just opposite to the light emitted from the sensor.
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