,HISTORY OF PRESENT ILLNESS: , The patient is a 3-year-old boy previously healthy who has never had a history of asthma or reactive airways disease who presented with a 36-hour presentation of URI symptoms, then had an abrupt onset of cough and increased work of breathing. 
,HISTORY OF PRESENT ILLNESS : , The patient is a 3 - year - old boy previously healthy who has never had a history of asthma or reactive airways disease who presented with a 36 - hour presentation of URI symptoms , then had an abrupt onset of cough and increased work of breathing .