A member asked:

I had being diagnose atrial fibrillation arrhythmia but also some test thyroides 8.0 is this can be the cause or is something else?

2 doctors weighed in across 2 answers

Yes it can be the ca: Hyperthyroid can cause afib.

Answered 9/28/2016

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Dr. John Garner answered

Specializes in Cardiology

Something else: I presume that the test that you had is a thyroid stimulating hormone (TSH) test. In this case, the value of eight represents a low thyroid level, not a high thyroid level. Low thyroid levels are not associated with atrial fibrillation.

Answered 6/10/2014

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