Selecting a Sensor
5-4 Monitoring SpO2
The most important factor when selecting a sensor is the position of the light
emitting diodes in relation to the photodetector; when a sensor is applied, the
diodes and the photodetector must be opposite each other. Sensors are
designed for patients within a specific weight range and for specific sites. Be
sure to:
Select a sensor appropriate for the patient’s weight.
Select a sensor site with adequate perfusion.
Avoid application to sites with edematous tissue.
Reusable SensorsReusable sensors may be reused on different patients after they have been
cleaned and disinfected (see the manufacturer’s instructions supplied wi th the
sensor).
Disposable SensorsDisposable sensors should be used only once and then discarded. They can be
relocated to a different application site on the patient if the first location does
not give the desired results. Disposable sensors must not be reused on differ-
ent patients.
Semi-disposable SensorsSemi-disposable sensors can be reused, but the adhesive wrap must be dis-
carded after each use. Semi-disposable sen sors are recommended for single-
patient use only.