Philips IntelliVue TRx Instructions For Use Manual page 35

Warning Warning
Failure to apply a sensor properly can reduce the accuracy of the SpO
measurement.
Loose/Tight sensor: If a sensor is too loose, it can compromise the optical
alignment or fall off. If it is too tight, for example because the application site is
too large or becomes too large due to edema, excessive pressure can be applied.
This can result in venous congestion distal from the application site, leading to
interstitial edema, hypoxia and tissue malnutrition. Skin irritations or ulcerations
can occur as a result of the sensor being attached to one location for too long.
To avoid skin irritations and ulcerations, inspect the sensor application site every
2-3 hours, and change the application site at least every 4 hours or according to
clinical practice guidelines.
Venous Pulsation: Do not apply sensor too tightly as this results in venous
pulsation and can severely obstruct circulation and lead to inaccurate
measurements.
Ambient Temperature: Never apply an SpO
o o
above 37 C (99 F) because this can cause severe burns after prolonged
application.
Extremities to Avoid: Avoid sites distal to BP cuff or intra-arterial line.
Warning Warning
When the specified Nellcor® sensors are used, the application must be
consistent with the sensor manufacturer's own guidelines.
Warning Warning
If you measure SpO
pulsatile SpO technical alarm can occur. If the monitor is configured to
2
suppress this alarm, there can be a delay of up to 60 seconds in indicating
critical patient status, such as sudden pulse loss or hypoxia.
on a limb that has an inflated NBP cuff, a non-
2
sensor at ambient temperatures
2
Product Safety
SpO
2
2
2-13