Pediatric GI disorder and failure-to-thrive workup and management scenarios tested on USMLE Step 2 CK.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- At what age do infants typically present with pyloric stenosis?
- 2 to 8 weeks of age
- What is the character of vomiting in pyloric stenosis?
- Nonbilious, projectile vomiting immediately after feeding
- What acid-base and electrolyte disturbance is classic for pyloric stenosis?
- Hypochloremic, hypokalemic metabolic alkalosis
- What physical exam finding is classic for pyloric stenosis?
- A firm, mobile, olive-shaped mass in the epigastrium or right upper quadrant
- What imaging study confirms pyloric stenosis?
- Abdominal ultrasound showing a thickened, elongated pylorus
- What is the definitive treatment for pyloric stenosis?
- Pyloromyotomy (Ramstedt procedure)
- What is the peak age range for intussusception?
- 3 months to 3 years
- What classic stool finding suggests intussusception?
- Currant jelly stools (blood and mucus)
- What abdominal exam finding is associated with intussusception?
- A sausage-shaped mass, usually in the right upper quadrant
- What is both diagnostic and therapeutic for most cases of intussusception?
- Air or contrast enema
- In children older than 2 to 3 years, what is the most common pathologic lead point for intussusception?
- Meckel diverticulum
- What is the classic presentation of malrotation with midgut volvulus?
- Sudden bilious vomiting in a neonate, a surgical emergency
- What upper GI series finding suggests malrotation with volvulus?
- A corkscrew appearance of the duodenum and proximal jejunum
- What abdominal X-ray finding is classic for duodenal atresia?
- The double bubble sign
- Duodenal atresia is most strongly associated with which chromosomal condition?
- Down syndrome (trisomy 21)