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.
Optical fibers are made of extremely pure optical glass. We think of a glass window as transparent, but the thicker the glass gets, the less transparent it becomes due to impurities in the glass. However, the glass in an optical fiber has far fewer impurities than window-pane glass. One company's description of the quality of glass is as follows: If you were on top of an ocean that is miles of solid core optical fiber glass, you could see the bottom clearly. Making optical fibers requires the following steps: Making a preform glass cylinder. Drawing the fibers from the preform.