Not a Peep...

Question:   An obese 8 year old male undergoes adenotonsillectomy for obstructive sleep apnea.  The procedure lasts 14 minutes and minimal bleeding was encountered.  Shortly after extubation, the patient experiences significant dyspnea and increased work of breathing, and demonstrates low oxygen saturations.  His clinical picture worsens in spite of supplemental O2 via nasal cannula.  What is this phenomenon called and what is your next step in management?   [Answer will be posted with next week's new question]

Answer to last week's question, How Low Can You Go? (April 4, 2016): 

Type 3.