After a routine physical examination, Kayla’s doctor suspected that she had an arrhythmia. After further investigation, her doctor prescribed a digitalis preparation. Based on Kayla’s doctor’s choice of medication, what condition does Kayla have?

Doctors generally prescribe digitalis preparations to treat _____.
I just finished the test the correct answer is atrial fibrillation.
You can post it in the answer if you want I will give you 5 starts and thanks.