15 presented as white lung of them 20 complicated with pneumonia 10 had patent ductus arterious 15 complicated with pulmonary hemorrhage and 5 complicated with pneumothorax .

15例表现为 白肺；其中合并 肺炎20例， 合并动脉导管未闭10例，并发肺出血15例，并发气胸5例。

Normal peripheral white blood fells can not exclude the diagnosis of pneumonia .

外用血 白细胞不升高不能排除 肺炎的诊断。

STREM-1 can be regarded as one indexes which can reflect the illness and prognosis and it can survey the development of illness.3.The level of TREM-1 which expressed in the surface of white cell membrane is closely related with the severity of pneumonia .

sTREM-1水平能作为反映病情及预后的指标之一，并可监测病情的发展。3. 白细胞膜表面的TREM-1水平与 肺炎 感染的严重程度密切相关，可协助早期判断 肺炎的严重程度。

Objective To observe the effects of iNO on number of white blood cells and level of IL-8 in BALF of meconium aspiration pneumonia animals .

目的探讨吸入NO对胎粪吸入 性 肺炎肺泡灌洗液中 白细胞数目、IL8的影响。