Replies to Isn't 87-90 BPM within the normal range ( 60-100) for a heart rate? | Mayo Clinic Connect

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Could it be a "One and Done?"

Heart Rhythm Conditions | Last Active: 5 hours ago | Replies (8)

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@marybird

Isn't 87-90 BPM within the normal range ( 60-100) for a heart rate?

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Replies to "Isn't 87-90 BPM within the normal range ( 60-100) for a heart rate?"

gloaming | @gloaming | 23 hours ago

@marybird Yes, but it doesn't rule out atrial fibrillation. You can have AF with an HR of less than 90!!! What that lower rate means is that 'RVR', or 'rapid ventricular response' is not currently appearing. When a patient learns they have AF, and that their peak rates are 130-140, it means '... AF with RVR,' which should appear on the written formal diagnosis.

Of course, we would know for certain that it IS AF because of the usual indicators: no P-wave and the R-to-R intervals are all over the place.