The rapporteur knows that in patients with atrial fibrillation, digoxin increased the risk of death regardless of serum concentration and in patients with levels equal to or greater than 1.2ng/dL.
Atrial fibrillation is behind heart failure (slowly, the overload damages the heart). At the same time, it stimulates the formation of clots that can lead to a heart attack or stroke. But the risk of these consequences occurring is greatly reduced with proper treatment.
With this information, we can conclude that the reporter knows that in patients with atrial fibrillation, digoxin increased the risk of death regardless of serum concentration and in patients with levels equal to or greater than 1.2ng/dL.
Learn more about atrial fibrillation in brainly.com/question/26012470