A nurse is assessing a 6-week-old child for progressive weight loss and projectile vomiting. The nurse suspects pyloric stenosis. What other assessment finding should be expected?

A. Pyloric stenosis typically causes projectile vomiting shortly after feedings. After vomiting, the infant may still appear hungry and may want to feed again. This is because the blockage prevents food from entering the small intestine, causing the infant to feel hungry soon after vomiting. B. One of the classic physical findings of pyloric stenosis is a palpable "olive-shaped" mass in the upper abdomen, which is usually located in the right upper quadrant. This mass is the enlarged pyloric muscle. C. Jelly-like stools are more characteristic of intussusception, not pyloric stenosis. D. While the child may show signs of discomfort or irritability due to hunger, severe pain in the abdomen is not a hallmark of pyloric stenosis.