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Practice questions › Acute and surgical care › Anaphylaxis

Anaphylaxis

A practice question in the style of the PLAB 1 exam. Choose your answer to see the explanation.

A woman has recurrent episodes of facial swelling and abdominal pain without hives. Her C4 is low. What is the likely diagnosis?

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The answer is C: Hereditary angioedema.

Hereditary angioedema is caused by C1 esterase inhibitor deficiency, with a low C4 and swelling without hives.

This question comes from Week 8 of PLAB Vault: Acute and emergency. That week has 124 more exam-style questions like it, 5 short lessons and 154 flashcards. The course starts free with Week 1 and reaches this topic in week 8, as part of a four-month plan with full mock exams along the way.

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