A parent is alarmed because their 6-week-old child has begun…
A parent is alarmed because their 6-week-old child has begun vomiting almost immediately after every feeding. In the past week, the vomiting has grown more forceful, with the vomit projecting several feet from their mouth. They are always hungry again just after vomiting. At the health care provider’s office, the nurse holds the child and offers them a bottle. While they drink, the nurse notes an olive-size lump in their right abdomen. Which condition should the nurse suspect in this child?