Which assessment finding in a client with peptic ulcer disease is most serious?

• A. Boardlike abdomen with shoulder pain
• B. Projectile vomiting
• C. Burning sensation 2 hours after eating
• D. Coffee-ground emesis

Answer: (A)

A perforated ulcer causing peritonitis is an immediate, life-threatening emergency. When the abdomen becomes rigid or “boardlike” and the pain radiates to the shoulder, it signals diaphragmatic irritation from gastric contents spilling into the peritoneal cavity. This situation can rapidly progress to sepsis and shock, so it demands urgent surgical evaluation and stabilization right away.

In contrast, projectile vomiting may point to obstruction or severe vomiting with fluid and electrolyte loss, but it doesn’t inherently indicate perforation. A burning sensation a couple hours after eating is a common symptom of ulcer activity, not an acute emergency. Coffee-ground emesis shows upper GI bleeding but, while serious, does not carry the same immediate risk of rapid deterioration as peritonitis from perforation.