caduceus
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11. A 5-month-old boy is brought for a follow-up examination. He was born at 37 weeks' gestation and has had persistent wheezing since shortly after birth despite treatment with nebulized and oral bronchodilators and oral corticosteroids. His diet consists of 32 ounces of iron-fortified cow's milk-based formula daily. He appears well nourished and happy. On examination, there is moderate relief of wheezing with extension of the neck. Which of the following is the most likely mechanism of this infant's wheezing?
A ) Allergic reaction to cow's milk
B ) Aspiration of a foreign body
C ) Compression of the airway by a vascular ring
D ) Concurrent upper respiratory tract infection
E ) Persistent immaturity of lungs
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| sprint123
Forum Guru
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Compression of the airway by a vascular ring - Double aortic arch.
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| mytime
Kick my butt!
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Got this on the test too, the concept i mean 
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| neuroblastoma
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persistent wheezing since shortly after birth despite treatment with nebulized and oral bronchodilators and oral corticosteroids...
means anatomical defect, so i would go for C too
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| arlete
Intern in 2009!!!!!
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C
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| caduceus
Forum Guru
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yeah its c ..
i clicked on e...having laryngomalacia in mind...bt later on re-reading the options it found out thats its immaturity of lungs and not larynx...
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| Ivonne
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CCCCCCCCCCCCCCC
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| dr_arc
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present since birth= congenital thing
relief with change in neck position= compression
congenital thing that compresses = vascular ring
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