125
90
22
35.5
88/46

A 3 month old child is brought to the ER by her grandparents because she was difficult to arouse and was vomiting. The child had a upper respiratory infection last week that she picked up from the other kids at the babysitter's. Grandparents report that she did fall recently. The child has her immunizations up to date. On exam the child is lethargic and responsive only to painful stimuli. Vitals signs are as listed. The cardiorespiratory exam is normal, the abdomen is soft and non-tender.  Skin exam shows no rash. Signs of meningeal irritation are not present. The child has increased tone and reflexes are 3+. Fundoscopic exam shows retinal hemorrhages. Labs shows CBC and differential: normal, glucose normal, lactacte normal. CXR shows healed rib fractures.

What is the most likely diagnosis?

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Authors

Dr. Hema Gangam

Dr. Hosanna Au

Reviewers

Dr. Susan Bannister

Susan.Bannister@ahs.ca

Dr. Mumtaz Virjii

mvirji2@cw.bc.ca