Patient was an infant using new rectal temperature probe for monitoring (aka general purpose temperature probe, soft 12 french, 400 series.Ref # 81-02s412).Temperature was consistently reading low (35.3 - 35.7c), so patient was placed on a bair hugger.Subsequently the patient's blood pressure became lower and perfusion felt adequate although the monitor still read 35.6.Temp probe was switched with no change in temperature on monitor, so cable was switched as well with again no change on monitor.I replaced probe and cable with the older style and the monitor then read 37.3, which was much more in line with how the patient appeared.
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