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.
The optimum temperature for lengthy storage, said investigators from Texas A&M Universityâs department of poultry science, was between 0.6 c and 2.2 c. A fridgeâs temperature is typically between 1.7 c and 3.3 c â but obviously you can adjust it to fit your chosen parameters. Other U.S. scientists are even more cautious. The highly respected Mayo Clinic recommends you throw away eggs if they have been left out of the fridge for more than two hours.