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NBME 21 Answers

nbme21/Block 4/Question#18

A previously healthy 4-week-old male newborn is ...

Pyloric stenosis

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submitted by hungrybox(175),

HIGH YIELD: "nonbilous vomiting" means that the issue/obstruction comes before (proximal to) the second duodenum, where bile is released.

At around ~4 weeks (give or take a few) is when pyloric stenosis usually shows up.

ez pts for u now keep it up