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General

a-fib

What does a-fib mean?

A common arrhythmia in which the atria beat chaotically, producing an irregularly irregular pulse and raising stroke risk.

"He's in rapid A-fib at 150."

Origin

Short for 'atrial fibrillation.'

Frequently asked questions

What is A-fib?
A-fib is short for atrial fibrillation, a common arrhythmia where the atria beat chaotically, giving an irregular pulse.
Why does A-fib matter?
The chaotic rhythm can allow blood clots to form, raising the risk of stroke.
What does 'rapid A-fib' mean?
It means atrial fibrillation with a fast ventricular rate, such as a heart rate around 150.
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Slang definitions: FreeDict original editorial.