Welch Allyn Connex Spot Monitor Directions For Use Manual page 81

Directions for use
1. Verify that the sensor cable is connected to the monitor.
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 applied too tightly
CAUTION If using pulse oximetry during full body irradiation, keep the
sensor out of the irradiation field. If the sensor is exposed to the irradiation,
the reading might be inaccurate or the unit might read zero for the duration
of the active irradiation period.
CAUTION The instrument must be configured to match your local power
line frequency to allow for the cancelation of noise introduced by
fluorescent lights and other sources.
CAUTION Exercise caution when applying a sensor to a site with
compromised skin integrity. Applying tape or pressure to such a site may
reduce circulation and/or cause further skin deterioration.
CAUTION If the Low Perfusion message is frequently displayed, find a
better perfused monitoring site. In the interim, assess the patient and, if
indicated, verify oxygenation status through other means.
CAUTION Circulation distal to the sensor site should be checked routinely.
CAUTION Do not modify or alter the sensor in any way. Alterations or
modification may affect performance and/or accuracy.
Patient monitoring 75