A two-week-old presents to the emergency department. The mother reports that the infant stopped breathing and turned blue. He has been breastfeeding well. Past medical history is significant for 37 weeks gestation, birth weight 6 lbs. 6 oz. He had a routine 2-day hospital stay. The maternal Group B strep status is unknown. Vital signs include temperature 38 rectal, heart rate 170, and respiratory rate 50 and shallow. Physical exam reveals a well appearing infant. The infant?s weight today is 6 lbs. 3 oz.

1)?List 3-5 possible diagnoses based on the history and physical exam.

2)?What additional history would be helpful?

3)?What additional physical exam findings would be helpful?

4)?What laboratory or radiology data would assist you with the diagnosis?

5)?Cite a current pediatric reference used to answer these questions.