What is the ability to noninvasively change functions of a pacemaker using a device placed over the pulse generator called?

The term "programmability" refers to the ability to noninvasively adjust or modify the functions of a pacemaker using an external programming device that communicates with the pulse generator. This capability allows healthcare providers to change various parameters of the pacemaker, such as pacing rates, output, and sensitivity settings, without needing to perform surgical interventions.

By utilizing a programmer placed over the pulse generator, adjustments can be made quickly and effectively, facilitating personalized care for patients with pacemakers. This is particularly beneficial in critical care settings where immediate responses to changes in a patient's condition are necessary.

In contrast, modulation refers to a method of varying signals or changing the properties of a wave, synchronization involves coordinating the timing between different devices or signals, and calibration pertains to the process of adjusting the accuracy of a measurement instrument, none of which accurately represent the noninvasive programming capability of pacemakers.