A 3-month-old boy is brought to the clinic by his mother ...

1. You are evaluating a 3-day-old preterm infant who was born at 26 weeks’ gestation and weighed 800 g. Her blood pressure has dropped acutely, and she has developed seizures. Physical examination demonstrates equal mechanical breath sounds, no heart murmur, hypotonia, a bulging anterior fontanelle, and lethargy. ................
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