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Short Answer Questions for ED Fellowship Study

Case: Projectile vomiting in an infant

A 5-week-old boy is brought to the emergency department with projectile vomiting.

1. State five differential diagnoses. For each, provide a key feature on history or examination that would support its presence. 5 marks

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A venous gas is provided: pH 7.6 pCO2 56 HCO3 52 Na 135 K 3.1 Cl 75 Glucose 2.6

2. State four abnormalities from the blood gas providing an explanation for each. 4 marks

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3. Briefly state four key components of your initial management. 4 marks

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This case forms part of a collaborative marking project designed to support fellowship preparation. In the week leading up to each tutorial, you can contribute answers to any active case. If you contribute, your answers may be reviewed, marked, and used to refine the model answers during the weekly fellowship teaching sessions.

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Your personal results and updated model answers become available the day after the tutorial.

After the tutorial you can still do the case and self-mark your answers, but your answers will not be included in the group review.