A term infant with meconium aspiration syndrome (MAS) and severe persistent pulmonary hypertension of the newborn (PPHN) is critically ill on high-frequency oscillatory ventilation (HFOV) with 100% oxygen, inhaled nitric oxide at 20 ppm, and continuous infusions of vasopressin and epinephrine. Despite escalating support, the arterial blood gas shows significant metabolic acidosis, and urine output has been minimal over the past 8 hours. Blood pressure via umbilical arterial catheter is 45/20 mmHg (mean 35 mmHg). Chest radiograph demonstrates lung expansion to 9 ribs with a normal cardiothymic silhouette and diffuse patchy opacities. What is the most appropriate next step in management?
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Coarctation of the aorta is commonly associated with an increased risk of:
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Which of the following cyanotic defects will present with an enlarged heart and increased pulmonary congestion on chest xray?
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Which of the following statements about congenital lobar emphysema is true?
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An inability to dispose of venous return on the right side of the heart will lead to:
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