Welch Allyn Connex VSM 6000 series Directions For Use Manual page 174

168 Patient monitoring
1. Verify that the sensor cable is connected to the monitor.
2. Clean the application site. Remove anything, such as nail polish, that could interfere
with sensor operation.
Note
3. Attach the sensor to the patient according to the manufacturer's directions for use,
observing all warnings and cautions.
WARNING The accuracy of SpO2 measurements can be affected by any
of the following:
• elevated levels of total bilirubin
• elevated levels of Methemoglobin (MetHb)
• elevated levels of Carboxyhemoglobin (COHb)
• hemoglobin synthesis disorders
• low perfusion at the monitored site
• the presence of concentrations of some intravascular dyes, sufficient to
change the patient's usual arterial pigmentation
• patient movement
• patient conditions such as shivering and smoke inhalation
• motion artifact
• painted nails
• poor oxygen perfusion
• hypotension or hypertension
• severe vasoconstriction
• shock or cardiac arrest
• venous pulsations or sudden and significant changes in pulse rate
• proximity to an MRI environment
• moisture in the sensor
• excessive ambient light, especially fluorescent
• the use of the wrong sensor
• a sensor misapplied or dislodged
• severe anemia
• venous congestion
WARNING Patient injury risk. The sensor and extension
cable are intended only for connection to pulse co-oximetry
equipment. Do not attempt to connect these cables to a PC
or any similar device. Always follow the sensor
manufacturer's directions for care and use of the sensor.
Do not use disposable sensors on patients who have allergic
reactions to the adhesive.
WARNING Patient injury and inaccurate measurement risk.
Do not use tape to secure the sensor to the patient. This can
restrict blood flow, damage the patient's skin, cause
inaccurate readings, and damage the sensor.
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Welch Allyn Connex Devices