基层综合医院的恶性肿瘤患者以中晚期为多，主要采取综合治疗延长其生存期，提高其生存质量。这些患者免疫功能低下，极易引起感染。且常常是造成死亡的重要原因之一。尤其在一些接受化疗、放疗的患者，化疗药物及放射线对骨髓抑制，使粒细胞数量明显减少，吞噬及杀菌功能减弱 Patients with malignant tumors in primary general hospitals are mostly in the middle and late stages. Comprehensive treatment is mainly used to prolong their survival period and improve their quality of life. These patients have low immune function and can easily cause infection. And it is often one of the important causes of death. Especially in some patients receiving chemotherapy and radiotherapy, chemotherapy drugs and radiation on myelosuppression, so that the number of granulocytes significantly reduced, phagocytosis and weakened bactericidal function