A 5-Week-Old Boy Is Brought to the Emergency Department After

question 340

Multiple Choice

A 5-week-old boy is brought to the emergency department after having tonic-clonic movements of his left upper and lower extremity that lasted approximately 3 minutes.  The patient was born at home at 38 weeks gestation to a 23-year-old primigravida.  The patient's mother received prenatal care, took prenatal vitamins, and had a healthy diet during pregnancy.  The infant's newborn screen was positive for cystic fibrosis, and confirmatory testing is pending.  The infant has been breastfeeding and gaining weight well.  He has never taken any medications and also has received no vaccinations.  On examination, the infant is postictal but no longer seizing.  A head CT scan shows a right-sided intracranial hemorrhage.  Which of the following is the most likely cause of this infant's presentation?

• A)Failure of amino acid hydroxylation
• B)Failure of fatty acid oxidation
• C)Failure of rhodopsin production
• D)Impaired gamma carboxylation
• E)Ineffective erythropoiesis
• F)Reduced activation of intranuclear receptors