1. A physiological parameter presentation system for a measured physiological parameter, comprising: a processor; an electronic input receiver configured to receive an electronic value corresponding to a measured physiological parameter of a patient; a data store configured to store a plurality of historical values of the measured physiological parameter; a display module in communication with the processor configured to generate a graphical display that includes: a range of possible values for the physiological parameter including a minimum value and a maximum value; a visual representation of at least one threshold value between the minimum value and the maximum value; a numerical display of the current value of the measured physiological parameter; and a historical comparator based on one or more of the historical values of the measured physiological parameter; and an electronic display output configured to output the generated graphical display to an electronic display.