Patent ID: 8777850

Claim:
An implantable medical device, comprising; a physiological sensor; a memory storing a target value for a physiological variable and storing a plurality of formulations for computing a plurality of averaged metrics of the physiological variable; a control unit configured for selecting a formulation for computing a first averaged metric of the plurality of averaged metrics and a second averaged metric of the plurality of averaged metrics from the plurality of formulations for computing a plurality of averaged metrics of the physiological variable, receiving a signal from the physiological sensor, computing the first averaged metric of the variable using the signal extending over a first periodic time interval and the second averaged metric of the variable using the signal extending over a second periodic time interval longer than and including the first periodic time interval such that the first and second averaged metrics provide different temporal resolutions of the physiological variable, and separately comparing each of the first averaged metric and the second averaged metric to the stored target value; and a notification module configured for generating a notice in response to the comparisons of the computed metrics to the target value, wherein the memory stores the identity of the selected first averaged metric and the second averaged metric, and the notification module generates the notice in response to both the selected formulation and the comparison of the selected first averaged metric and the second averaged metric and the target value.