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Pulse Oximetry
Attachment of fiber optic oximetry sensors
The clip on sensors are typically attached to the rat foot or the shaved mouse thigh. For
rabbits, the ear is often the location of choice
A black mouse is shown above prepared for MR with ECG, pulse ox, respiration and
temperature sensors. The small pulse ox clip sensor is attached to the base of the tail.
A white rat is shown above prepared for MR with pulse ox, respiration and temperature
sensors. The large pulse ox clip sensor is attached to the rat's foot.
The clip on sensors can exert pressure on the attachment site which in turn can restrict
blood flow. Restricted blood flow results in a reduction of the oximetry signal. An O-ring
fitted over the clip of the sensor can be used to reduce the pressure.
Revision C, August 2013
11-4
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