We now turn to the vital process by which information in DNA is used by the cell to direct the synthesis of RNAs and proteins. The various cell types in a multicellular organisms owe their distinctive phenotypes to differences in the proteins made in each kind of cell.
There is a wide array of conditions that can cause hemarthrosis including: trauma - a blunt injury or fracture of a joint can cause bleeding into it. A twisting injury or blow to the knee can also cause hemarthrosis and rapid swelling. In some cases, minimal knee trauma results in hemarthrosis, often due to underlying clotting or collagen disorders.
The presentation of a patient with a pericardial effusion can range from an incidental finding to a life-threatening emergency. Accordingly, the causes of pericardial effusions are numerous and can generally be divided into inflammatory and non-inflammatory etiologies. For all patients with a suspected pericardial effusion, echocardiography is essential to define the location and size of an effusion.