A 2-Year-Old Female Presents with Difficulty Breathing and an Edematous

A 2-year-old female presents with difficulty breathing and an edematous appearance. Her mother reports that the condition is recurrent and seems to occur more often during stressful situations. The child is diagnosed with angioneurotic edema. Which of the following is deficient in this child?

A) C1 esterase inhibitor
B) Carboxypeptidase
C) Neutrophils
D) Plasmin

Correct Answer:

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