Physiological feedback systems and methods

A medical device to one or both of monitor or treat a patient, comprising:

• multiple patient sensors configured to sense respective multiple patient physiological parameters, the multiple patient sensors including a patient oxygenation sensor configured to sense patient tissue oximetry data or a patient airway CO2 sensor configured to sense patient capnography data;
• a processor electrically coupled to the multiple patient sensors and configured to receive the sensed patient physiological parameter data, the processor further configured to:
• determine an effectiveness index based on the sensed patient tissue oximetry data or the patient capnography data;
• scale the sensed patient physiological parameter data based on the effectiveness index;
• and
• an output of the effectiveness index including the scaled patient physiological parameter data transmitted to a display.