Objective To outline the clinical significances of serum complement 3 and 4 (C3 and C4), platelet count and D-dimer in infants with systemic inflammatory response syndrome (SIRS).

• 摘要目的探讨全身炎症反应综合征(SIRS)患儿血清补体(C3、C4)活性、D-二聚体含量、血小板计数变化的临床意义。