Embodiments include methods, systems, and apparatuses for generating an enhanced electrocardiograph (ECG) that includes indicators of values of different types of supplemental information embedded into a trace of measured electrical potentials. More specifically, embodiments may include collecting first data samples of electrical potentials produced by a heart at a sequence of sampling times, and processing the data to calculate supplemental information over a number of sampling times. Based on the first data samples and the supplemental information, a trace of the electrical potentials collected at the sampling times is presented. The trace may have one or more embedded indicators of the supplemental information that vary responsively to the first data samples collected at each of the sampling times.
