患儿,男,2岁。被诊断为“急性感染的答案
患儿,男,2岁。被诊断为“急性感染性喉炎”,患儿出现喉鸣和吸气性呼吸困难、烦躁不安、口唇发绀,双眼圆睁,头面出汗,肺部呼吸音明显减弱,心音低钝,此患儿喉梗阻的程度为
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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