Blood samples were collected on the day of admission(day 1) in intensive care unit and on days 4, 7 and 10. Compared with the normal control group(n=15), PCT plasma levels were determined dynamically, using a specific immunoluminometric assay.

• 采用免疫发光法测定其入院第1、4、7、10天血清PCT,并与正常对照组15例进行比较。