The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 5-year-old female suffers from recurrent infections by Aspergillus species, Pseudomonas species, and Staphylococcus aureus. The patient's neutrophils are examined in the laboratory and they fail to react during the nitroblue tetrazolium test. Which of the following is most likely dysfunctional in this patient?   (A) Immunoglobulin class switching   (B) Superoxide dismutase   (C) Myeloperoxidase   (D) Respiratory burst
['(D) Respiratory burst <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Immunoglobulin class switching \n (B) Superoxide dismutase \n (C) Myeloperoxidase \n (D) Respiratory burst <> possible answers', "  A 5-year-old female suffers from recurrent infections by Aspergillus species, Pseudomonas species, and Staphylococcus aureus. The patient's neutrophils are examined in the laboratory and they fail to react during the nitroblue tetrazolium test. Which of the following is most likely dysfunctional in this patient? <> context@"]