this post was submitted on 28 Jul 2025
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Why is heart rhythm abbreviated to AF and not HR or something?
HR is "Heart Rate" and AF is "Atrial Fibrillation". "Heart Rate" is just how many times the heart beats in a minute. "Atrial Fibrillation" is an abnormal rhythm of the heart beat and the rate at which the heart beats in AFib can be normal or fast.