Metabolism USMLE Step 1 Practice Question
An 8 month old boy has poor weight gain, chronic diarrhea, and abdominal distention. His parents report greasy foul smelling stools since starting formula feeds. Examination shows loss of deep tendon reflexes and impaired vibration sense. Peripheral smear reveals acanthocytes. Deficiency of which of the following proteins is most likely responsible?
Answer choices
- ALDL receptor
- BApolipoprotein CII
- CMicrosomal triglyceride transfer proteinCorrect answer
- DApolipoprotein E
- ELipoprotein lipase
- FApolipoprotein B
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