While observing the flow graphic of an infant intubated for…

While observing the flow graphic of an infant intubated for respiratory failure, the respiratory therapist notes the expiratory flow does not return to baseline prior to the next breath being initiated.  A CXR reveals the infant is inflated to 11 + ribs.  Which of the following actions would address this issue?

A three year old presents to the clinic with chronic unilate…

A three year old presents to the clinic with chronic unilateral wheezing for the past 2 weeks.  CXR shows an infiltrate in the RML.  The child was previously healthy, with immunizations up to date.  The child is afebrile, with mild retractions present.  An albuterol treatment does not cause any improvement in breath sounds or retractions.  Which disease process seems most likely?