In atrial fibrillation, the blood from the atria is not fully ejected into the other heart chambers. Blood remaining in the atria could form clots, which could increase the risk of heart attack or stroke (when the clot wedges itself into an artery of the heart or brain). As a blood thinner, Coumadin helps prevents these clots.
Laverne Cox is an American actress, reality television star, television producer, and LGBT advocate.
Laverne Cox (March 6, 2017). Itâs Not About Bathrooms: Laverne Cox on the Attack Against Trans-Rights. Instyle.com (Archive) Chancellor Agard (February 23, 2017). Laverne Cox reacts to Trump lifting transgender student bathroom protections.