Philips IntelliVue TRx, Instructions For Use Manual

Page: 36 / 274

Draft - 1 Aug 08
SpO
2
2-14 Product Safety
Warning Warning
Failure to apply a sensor properly can reduce the accuracy of the SpO
2
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
2
sensor at ambient
temperatures above 37
o
C (99
o
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.