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NBME 22 Answers

nbme22/Block 1/Question#43

A 13-year-old girl is brought to the emergency ...

C1 inhibitor

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submitted by dr.xx(42),

Hereditary angioedema. Type I and II are caused by a mutation in the SERPING1 gene that makes the C1 inhibitor protein.

https://en.wikipedia.org/wiki/Hereditary_angioedema





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submitted by link981(33),

FA 2018 page 107

C1 esterase inhibitor deficiency: Causes hereditary angioedema due to unregulated kvllikrein activation, which leads to increased bradykinin.