Objective To study the CT signs of bronchotracheal transparent foreign body and its diagnostic value.

目的探讨、可透光异物的CT表现及诊断值。

RESULTS Zhike syrup obviously prolonged the incubation period of coughing and increasel the bronchotracheal secretion of phenol red.

结果止咳露咳嗽潜伏期,酚红排泌量明显增加。