input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 3-month-old girl is brought to a pediatrician by her parents. She has central cyanosis without signs of respiratory distress or signs of heart failure. An echocardiogram reveals severe pulmonary outflow obstruction, right ventricular hypertrophy, a ventricular septal defect, and an overriding of the aorta. An elective primary surgical repair is planned at 4 months of age. Which of the following statements is true about this girl’s condition?   (A) The tricuspid valve is the most common valve affected by bacterial endocarditis in uncorrected tetralogy of Fallot.   (B) Normal hemoglobin in patients with tetralogy of Fallot does not rule out iron deficiency anemia.   (C) Cerebral arterial thrombosis is more common than cerebral venous thrombosis.   (D) Refractory heart failure is a common complication of tetralogy of Fallot.
output: ['(B) Normal hemoglobin in patients with tetralogy of Fallot does not rule out iron deficiency anemia. <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) The tricuspid valve is the most common valve affected by bacterial endocarditis in uncorrected tetralogy of Fallot.  (B) Normal hemoglobin in patients with tetralogy of Fallot does not rule out iron deficiency anemia.  (C) Cerebral arterial thrombosis is more common than cerebral venous thrombosis.  (D) Refractory heart failure is a common complication of tetralogy of Fallot. <> possible answers', '  A 3-month-old girl is brought to a pediatrician by her parents. She has central cyanosis without signs of respiratory distress or signs of heart failure. An echocardiogram reveals severe pulmonary outflow obstruction, right ventricular hypertrophy, a ventricular septal defect, and an overriding of the aorta. An elective primary surgical repair is planned at 4 months of age. Which of the following statements is true about this girl’s condition? <> context']