A 48-hour-old full-term male newborn develops bright green vomiting in the nursery. He was born via an uncomplicated vaginal delivery and passed meconium at 18 hours of life. His vital signs are temperature (), heart rate 145/min, respiratory rate 42/min, and blood pressure 65/40 mm Hg. Physical examination shows a mildly distended but soft abdomen without erythema. The patient is hemodynamically stable. Arrange the following diagnostic and therapeutic steps in the correct chronological sequence to evaluate and definitively manage the most critical time-sensitive etiology of this presentation.
- 1Discontinue enteral feeds and insert a nasogastric or orogastric tube
- 2Obtain a plain abdominal radiograph
- 3Perform an upper gastrointestinal contrast series
- 4Perform an emergent exploratory laparotomy
Answer
The correct sequence for managing neonatal bilious emesis is: 1) Discontinue enteral feeds and insert a nasogastric or orogastric tube, 2) Obtain a plain abdominal radiograph, 3) Perform an upper gastrointestinal contrast series, and 4) Perform an emergent exploratory laparotomy.
The algorithm for hemodynamically stable neonates with bilious emesis dictates prioritizing stabilization via nasogastric decompression and intravenous fluids. The first imaging step is always a plain abdominal radiograph to rule out bowel perforation (pneumoperitoneum). If no free air or characteristic distal obstruction pattern is seen, an upper GI contrast series is the definitive test to diagnose midgut volvulus. Once diagnosed, emergent exploratory laparotomy is required to salvage the ischemic bowel.
Step-by-Step Solution
Key Concept
The standard diagnostic algorithm for neonatal bilious emesis involves immediate gastric decompression, followed by a plain abdominal radiograph, then an upper GI contrast series to diagnose midgut volvulus, culminating in surgery if volvulus is confirmed.
Estimated Time:1m 30s