The overall exam time should be less than 5 minutes, and frequently can be completed in 1 or 2 minutes. If complete views of either the liver or spleen are not visualized with a single image, more than one image of the area is required. The order of image acquisition depends on the mechanism of injury. In blunt trauma, Morrison's pouch is generally imaged first (the area where fluid will most likely first accumulate), followed by the splenorenal view, the rectovesical or rectouterine view, and then the pericardial space. In penetrating trauma, the pericardial space is often imaged first followed by Morrison's pouch, then the remaining two views.