The parent of a 6-week-old boy come to the clinic for evalua…
The parent of a 6-week-old boy come to the clinic for evaluation because the infant has been vomiting. The parents report that the vomiting has been increasing in frequency and forcefulness over the last week. the mother says, “Sometimes, it seems like it just bursts out of his mouth.” A diagnosis of hypertrophic pyloric stenosis is suspected. When preforming the physical examination, what would the nurse most likely find?