![]() But since I had already written this and writing is not that easy for me I wasn't going to throw it away. Of course he is correct and you should ignore my babble. I just saw the CardiacTechnician's comment and mine may contradict some of what he said. In other words the heart's natural PM was faking out the man made PM. So since the PM saw an impulse it would not send one thus we have a skipped beat. Some would be too weak to complete a heart beat but would be strong enough for the pacemaker to detect. The answer I got from the dr was that the electrical impulse generated by the heart's natural PM was not always of the same strength. This happens to me often and although it is only a few beat low I wanted to know why this was happening. There may be times that you will check your heart rate manually and find it below the low set point. When the heart rate reaches or exceeds the upper set point the PM continues to monitor but it quit sending impulses and will send no more until it determine that your heart rate will drop below 70. Based on what the dr knows about your heart function (for example my low setting is 80 and the high setting is 110) he will select the upper limit. That is where the manmade PM comes in and keeps the heart at 70.Īs mentioned there are two set point and the PM watches both. In other words say the low set point is 70n and your heart's natural PM is not sending enough electrical impulses to keep your heart beating that fast. When the heart rate drops below the low set point the PM will send sufficient electrical impulses to make the heart beat at least that fast. The PM can only increase heart rates So the PM has a low setting and a high setting. Your PM has two settings (actually it has many more than two but to answer your question I will talk about the two we most often hear discussed. ![]()
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