A 1-Year-Old Boy Has a History of Recurrent Bacterial and Fungal

question 6

Multiple Choice

A 1-year-old boy has a history of recurrent bacterial and fungal infections.Further testing shows increased concentrations of deoxyadenosine triphosphate (dATP) in white blood cells.Which of the following is the most likely diagnosis?

• A)Adenosine deaminase deficiency.
• B)Lesch-Nyhan syndrome.
• C)Orotic aciduria.
• D)Purine-nucleoside phosphorylase deficiency.
• E)Xanthine oxidase deficiency.

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