True Protein-General Information. True protein, as the name implies, is the actual amount of protein in milk, while the former standard, crude protein, is derived from the nitrogen content in milk.Crude protein over evaluates the amount of protein in milk because it includes non-protein nitrogen.The new Federal Milk Marketing Orders, which went into effect January 1, 2000, pay for protein on a true-protein scale instead of the crude-protein scale that had been used previously in many parts of the country.rude protein over evaluates the amount of protein in milk because it includes non-protein nitrogen. The new Federal Milk Marketing Orders, which went into effect January 1, 2000, pay for protein on a true-protein scale instead of the crude-protein scale that had been used previously in many parts of the country.
In adults, a diameter of 2.1 cm/m2 has been considered the upper normal range in ascending aorta. Transthoracic echocardiography suffices to quantify maximum aortic root and proximal ascending aorta diameters when the acoustic window is adequate.
For the thoracic aorta, a diameter greater than 3.5 cm is generally considered dilated, whereas greater than 4.5 cm would be considered aneurysmal. Aneurysms may affect one or more segments of the thoracic aorta, including the ascending aorta, the arch, and the descending thoracic aorta.As many as 25% of patients with TAA also have an abdominal aortic aneurysm.neurysms may affect one or more segments of the thoracic aorta, including the ascending aorta, the arch, and the descending thoracic aorta. As many as 25% of patients with TAA also have an abdominal aortic aneurysm.