1岁小儿，发热2天，犬吠样咳嗽，声音嘶哑，在安静时有吸气性喉鸣音，查体:明显烦躁不安，口唇发绀，呼吸音减低，P 170次/分。最可能的疾病是

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• 1男婴，急性起病，病史3小时，突发音哑、犬吠样咳嗽，有吸气性呼吸困难，急来儿科就诊，请问该患儿最可能出现的体征是

  A.吸气性三凹征

  B.双肺细湿啰音

  C.双肺呼气相喘鸣音

  D.一侧呼吸音减低

  E.鼻翼扇动

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• 2A 3 years old boy presents to the clinic because of 3 days low degree fever， sore throat， sneezing and running nose. What is the most possible cause of his symptoms

  A.Rhinovirus

  B.Human metapneumovirus

  C.Influenza virus

  D.Group C streptococcus

  E.Adenovirus

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• 3一3个月婴儿就诊，喘息明显，发热，吸气时胸骨上凹，无明显发绀，体检发现患儿为吸气时喘鸣，平时也有类似症状，程度较轻，你考虑发生了

  A.婴儿哮喘

  B.先天性喉喘鸣急性加重

  C.异物吸入

  D.肺炎

  E.喉囊肿

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• 42岁患儿，上呼吸道感染2天后出现吸气时有喉鸣音伴胸壁显著凹陷，鼻翼扇动，犬吠样咳嗽，最可能的诊断是

  A.哮喘

  B.咽炎

  C.喉炎

  D.细支气管炎

  E.右主支气管异物

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• 55岁男孩，因发热3小时就诊，T 39.5℃，音哑，意识尚清醒，烦躁不安，吸气性呼吸困难，首先应检查的是

  A.检查咽部

  B.动脉血气分析

  C.胸部X线

  D.准备气管插管

  E.末梢血白细胞化验

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• 618个月男孩，发热、咳嗽2天，今咳嗽加重，出现声音嘶哑，查体:T 37.8℃，急性病容，呼吸急促，烦躁不安，唇周略绀，三凹征可疑，R 75次/分，P 150次/分，双肺吸气相延长， 闻及哮鸣音，本病例诊断最可能考虑为

  A.毛细支气管炎

  B.喉炎

  C.婴儿手足搐搦症

  D.气管异物

  E.自发性气胸

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• 7A fully immunized 2-year-old boy presents to the emergency room with several days of low-grade fever，barking cough，and noisy breathing. Over the last few hours he has developed a fever of 40℃ and looks toxic. He has inspiratory and expiratory stridor. The family has not noticed drooling，and he seems to be drinking without pain. Direct laryngoscopy reveals a normal epiglottis. The management of this disease process includes which of the following?

  A.Intubation and intravenous antibiotics

  B.Inhaled epinephrine and oral steroids

  C.Inhaled steroids

  D.Observation only

  E.Oral antibiotics and outpatient follow-up

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