If my pet has been active and their body decides the heart should be beating at 135 beats per minute, but the pacemaker is set to 100 beats per minute, what happens?
The artificial pacemaker is an incredible piece of technology. Under these circumstances the device will sense that the heart is beating beyond its set threshold of 100 beats per minute and stop inducing current. Once the heart settles down after the excitment, and slows, the artificial pacemaker will start inducing current when the rate drops below its threshold.