USMLE Forum Archives - USMLE Step 2 CK - peds
peds
HIV - 12-31-07 12:41
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
HIV - 12-31-07 12:41
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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#4
Re: peds babbu5508 - 07-07-10 00:52 C ) Compression of the airway by a vascular ring
Vascular rings and pulmonary slings are congenital anomalies of the aortic arch and pulmonary artery. They are very important but rare causes for common respiratory symptoms.
#5
Re: peds bingousmle - 07-12-10 06:13 moderate relief of wheezing with extension of the neck points to an anatomicla obstruction by a vascular ring which is causing compression
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