Ultrasensitive whole blood C-reactive protein, which is clinically significant like a marker, can be used to determine the ups and downs of inflammation, whether it is acute or improving, by its elevation and decrease. Elevated C-reactive protein in plasma is seen in acute myocardial infarction, trauma, infection, inflammation, surgery, and tumors, to name a few. During this period, C-reactive protein rises daily, up to nearly 2,000 times the normal level. Combined with a medical history to determine disease progression, a doctor can readily determine a patient’s condition by drawing blood tests as well as tracking C-reactive protein. If C-reactive protein is on the decline in inflammation or other diseases, the condition is improving and healing is excellent. In general, you can determine the level of C-reactive protein through regular follow-up, which is of great significance for some diseases, such as systemic lupus erythematosus, leukemia, and so on.