A 7-day-old premature infant (gestational age 28 weeks, birth weight 1100 g) born to a mother with inadequate antenatal steroids presents with feeding intolerance, abdominal distension, and grossly bloody stools. Abdominal X-ray shows the finding marked **A** in the diagram—bubbly and linear lucencies within the bowel wall, most prominent in the right lower quadrant. Which of the following is the most appropriate IMMEDIATE management for this infant?

Explanation

## Why "Initiate NPO status, nasogastric decompression, IV fluids, and broad-spectrum antibiotics" is right The finding marked **A**—pneumatosis intestinalis (intramural gas in the bowel wall)—is pathognomonic of necrotizing enterocolitis (NEC) in a premature infant. This radiological sign indicates transmural inflammation and bacterial translocation but does NOT yet indicate perforation (which would show pneumoperitoneum, marked **C**). According to Nelson 21e Ch 123, the standard management for Bell Stage II (definite NEC with pneumatosis intestinalis) is conservative medical therapy: NPO (gut rest), nasogastric decompression to prevent further distension, IV fluid resuscitation, and broad-spectrum antibiotics (ampicillin + gentamicin + metronidazole or piperacillin-tazobactam) for 7–14 days. Surgery is reserved for perforation (pneumoperitoneum), clinical deterioration, or fixed dilated loops on serial imaging—not for pneumatosis intestinalis alone. ## Why each distractor is wrong - **Proceed directly to surgical exploration and bowel resection**: Pneumatosis intestinalis alone is NOT an indication for immediate surgery. Surgery is reserved for perforation (pneumoperitoneum marked **C**), worsening clinical status despite medical therapy, or imaging signs of necrosis. Premature surgical intervention increases morbidity and mortality. - **Continue enteral feeds at a slower rate**: NPO (complete gut rest) is mandatory in NEC to allow the inflamed bowel to heal and prevent further bacterial translocation. Continuing any enteral feeding—even reduced—is contraindicated and risks progression to perforation. - **Administer inotropic support and prepare for exchange transfusion**: While sepsis and DIC can occur in severe NEC, exchange transfusion is not standard management. Inotropic support may be needed if shock develops, but the immediate priority is NPO, decompression, and antibiotics per the clinical anchor. **High-Yield:** Pneumatosis intestinalis = pathognomonic for NEC in premature infants; manage medically (NPO + antibiotics) unless perforation (pneumoperitoneum) or clinical deterioration occurs. [cite: Nelson Textbook of Pediatrics, 21st edition, Chapter 123 (Necrotizing Enterocolitis)]