A patient with a history of PUD is admitted for observation after a sudden onset of severe abdominal pain. What diagnostic test would the nurse anticipate being ordered first?

Correct Answer: B

Rationale: A CT scan is often first to quickly identify complications like perforation or bleeding in acute PUD presentations.

Correct Answer: B

Rationale: Signs of peritonitis suggest perforation, requiring immediate physician notification.

Correct Answer: B

Rationale: Endoscopy with biopsy is the gold standard for diagnosing gastritis as it allows direct visualization of the stomach lining and histological confirmation of inflammation or H. pylori infection. Barium swallow is less specific and used more for structural abnormalities. Abdominal ultrasound assesses organs like the liver or gallbladder, not gastritis. Stool culture is irrelevant unless checking for H. pylori antigen, but it's not the primary method.

Correct Answer: B

Rationale: Both co-codamol and co-proxamol contain paracetamol which may be hepatotoxic. Cophenotrope has the constipating opioid diphenoxylate, but includes atropine whose unpleasant anticholinergic side-effects, including dry mouth, are designed to discourage over-use.

Correct Answer: A

Rationale: The digestive system breaks down food into fatty acids and glycerol, and the circulatory system transports these to cells for fat synthesis. Excretory removes waste, not nutrients. Immune and muscular and reproductive systems are unrelated to fat synthesis.