One of the most important considerations in the acute management of atrial fibrillation is the need for anticoagulation (see the image below). Acute cardioversion for AF carries a risk of thromboembolism unless anticoagulation therapy is initiated prior to the procedure and continued post procedure.
The glass fibers are made of various types of glass depending upon the fiberglass use. These glasses all contain silica or silicate, with varying amounts of oxides of calcium, magnesium, and sometimes boron.
Fiberglass is the brainchild of Owens Corning, which originally called the product Fiberglas (with only one s). The fiberglass that's used as a building material (and not insulation) is composed of plastic that's mixed in with glass fibers, which is why it's alternately known as glass-reinforced plastic (GRP). This type of fiberglass is commonly used to make car and boat bodies, water tanks, pipes, hot tubs, and roofing. As a roofing material, fiberglass can be molded into many different shapes and designs. The most popular forms are sheets, panels, and shingles (fiberglass shingles usually contain asphalt as well).