The nurse is assessing a patient who reports a sudden onset of intermittent, crampy, colicky abdominal pain that "comes in waves". The patient has a medical history of Crohn's disease. The patient has projectile vomiting, and the nurse observes a foul-smelling fecal odor in the vomitus. The patient reports a decrease in urinary output and has dry mucous membranes. Based on the assessment findings, what complication is the patient most likely experiencing?

A. Perforation of the bowel: Bowel perforation typically presents with sudden, severe, diffuse abdominal pain, board-like rigidity, and signs of acute peritonitis. While vomiting may occur, the presence of crampy, intermittent pain and fecal odor in vomitus is more indicative of obstruction than perforation. B. Small bowel obstruction: Intermittent, crampy, colicky pain that comes in waves, projectile vomiting with a fecal odor, decreased urine output, and dry mucous membranes are classic signs of small bowel obstruction. In Crohn’s disease, strictures or adhesions can impede bowel flow, leading to fluid loss, dehydration, electrolyte imbalance, and accumulation of intestinal contents that reflux into the stomach. C. GI bleed: Gastrointestinal bleeding usually presents with hematemesis, melena, or hematochezia, along with pallor or signs of anemia. The patient’s vomiting of foul-smelling fecal material and colicky abdominal pain is not typical of bleeding but of mechanical obstruction. D. Peritonitis: Peritonitis presents with diffuse abdominal tenderness, rebound tenderness, guarding, fever, and signs of systemic infection. While this is a possible complication of obstruction or perforation, the patient’s description of intermittent colicky pain and fecal vomiting points toward an obstruction rather than generalized peritoneal inflammation.