CRP and Aortic dissection: For instance, the high risk of acute aortic dissection (AAD) in patients was predicted to be associated with elevated levels of c-reactive protein (CRP) (9.71 mg/L), high serum phosphorus (P) levels (0.37 mmol/L), elevated procalcitonin (PCT) levels (0.447 ng/mL), and the use of enteral nutrition.