Wide mediastinum is caused by aortic rupture or mediastinal hematoma, but poor radiographic technique can lead to a mistaken diagnosis. The plain chest film and the aortogram are essential for the proper diagnosis of widened mediastinum in trauma.
1 Temperature: Chicken eggs should be incubated at a temperature between 99 and 102 degrees Fahrenheit (99.5 is often considered to be ideal). 2  Avoid temperatures outside the 97â103 Â°F (36â39 Â°C). 3  range. 4  If the temperature remains beyond either extreme for several days, hatchability may be severely reduced.
Keep the lid on so the water remains at slightly below boiling point. At this stage, decide about how long you want to leave the eggs in for: 1  Let the eggs sit for 3 to 5 minutes for coddled or soft-boiled eggs - runny yolk.  Let the eggs sit for 5-6 minutes for Mollet eggs - slightly runny yolk.