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USMLE · Question #619
USMLE Question #619: Real Exam Question with Answer & Explanation
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Question
A 25-day-old male is brought to the physician due to seizures, rigidity and frequent viral infections. Physical examination reveals a neonate with cyanosis in the lower extremities. The most likely cause of these findings is a
Options
- Adefect in the IL-2R gamma chain
- Bdefect in the lysosomal trafficking regulation gene
- Cdefect in the tyrosinase kinase gene
- Ddeletion in chromosome 22q11.2
- Emutation in the STAT3 gene
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