The correct measure to take regarding this situation would be to write a letter of commendation to his file. It is necessary to have an evidence of the situation as a first step, later the next stages of the process should be taken into account by the appropriate staff in order to respect all the time the culture of safety.
Number of people on the heat monitor is normally do to the patient either having a heart attack or having had a heart attack in the past do to heat problems of stress.