In acute pancreatitis, guarding and a board-like abdomen is an ominous sign and usually indicates which complication?

• A. Renal failure
• B. Paralytic ileus
• C. Peritonitis
• D. Need for more pain medication

Answer: (C)

Guarding and a board-like, rigid abdomen signal peritoneal irritation from peritonitis in the setting of acute pancreatitis. When pancreatic enzymes leak or pancreatic tissue necroses, inflammation can involve the peritoneum, producing a marked protective rigidity as the abdominal wall muscles contract involuntarily. This is a surgical emergency because it suggests serious complications such as perforation or infected necrosis with chemical or bacterial peritonitis. Management focuses on rapid assessment and escalation: keep the patient NPO, establish IV access and fluid resuscitation, obtain timely imaging and labs, and prepare for possible surgical intervention.

Renal failure is a systemic complication that presents with changes like decreased urine output and electrolyte disturbances rather than a sudden rigid abdomen. Paralytic ileus causes abdominal distension and hypoactive or absent bowel sounds but usually does not produce the same involuntary board-like rigidity. Needing more pain medication does not reflect a dire abdominal complication.