A (b)(6) male (b)(6) unwitnessed cardiac arrest had arctic sun advanced thermal therapy ordered and in process.During the warming phase, the bedside nurse reported labile temperature readings, so the thermistor rectal thermometer probe was removed and replaced.The pt's temperature continued to rise slowly, 90.7-92.3 degrees f, for approx 4 hrs, followed by a rapid increase to 103.7 degrees f.The rapid increase in temperature reportedly occurred within 30 minutes.The oral temperature was taken and read 103.7, validating the issue.The arctic sun w/ rectal thermistor probe was removed and discontinued.The pt was not subject to harm related to the rapid rewarming.The hosp biomed tech reported that the interface cable from the rectal probe to the arctic sun unit was "damaged".Unfortunately, no product info for the thermistor rectal probe was reported or saved for evaluation.The arctic sun unit was sent to (b)(6) for assessment and reportedly sent to the mfr for review of the reported issue.((b)(6) = 3rd party medical device / equipment management).
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