Mild eosinophilia is characteristic of infantile pneumonia caused by

Mild eosinophilia is characteristic of infantile pneumonia caused by

The sweat chloride test, which is still the standard diagnostic test for cystic fibrosis (CF), is positive if sweat chloride more than

Factors predisposing to secondary pneumothorax (underlying cause identified) include all the following EXCEPT

A l-year-old presents with an acute onset of cough, choking, and respiratory distress. Physical evaluation reveals a respiratory rate of 45 and wheezing. There is no family history of asthma, and no one at home is ill. The older sister states that they were both playing house and that they both had eaten sunflower seeds. The most likely diagnosis is

A 3-year-old presents to your office with a 3-week history of unilateral nasal discharge. The discharge is malodorous and lately has been blood tinged. The most likely diagnosis is