A 9-Year-Old Male Presents to the Emergency Room Complaining of "Chest

Multiple Choice

A 9-year-old male presents to the emergency room complaining of "chest tightness" and difficulty breathing. The RN notes that he is frequently coughing and wheezes are ausculated in all lung fields. His chest x-ray shows a flattened diaphragm and overexpanded lungs. The patient's mother reports that he had five episodes like this one over the past few years, but none this bad. Recently, the patient has had more frequent episodes of difficulty breathing and coughing, each lasting for a few hours. He does not take any medications at home.
-Which of the following conditions would be most pertinent for the nurse to ask about while collecting the patient's past medical history?  

A) Hay fever
B) Premature birth
C) Eczema
D) Blood transfusion reaction