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单选题
患儿，6个月，支气管肺炎。2小时前突然烦躁，喘憋加重，口、鼻周发绀，心率180次/分，心音低钝，此表现符合（）
A
脓胸
B
脓气胸
C
肺大疱
D
肺不张
E
心力衰竭
参考答案
参考解析
解析：
呼吸、心率的增快，心音低钝，肝脏的进行性增大是心力衰竭的表现。发热持续不退或退而复升，中毒症状加重，呼吸困难，频繁咳嗽，咳出大量脓痰，是肺脓肿的表现。
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