Correct Answer: A

Rationale: Cleansing the peristomal skin meticulously is crucial to prevent irritation and infection around the stoma.

Correct Answer: D

Rationale: The correct answer is D: Steady. The pain associated with appendicitis is typically constant and steady, especially in the lower right quadrant of the abdomen. It is not described as aching (choice A) because it is more persistent and severe than a dull ache. It is not fleeting (choice B) as appendicitis pain tends to worsen over time. It is also not intermittent (choice C) as the pain is continuous and does not come and go.

Correct Answer: C

Rationale: A gastroscopy is performed to visualize the stomach lining and obtain biopsies to diagnose gastric cancer.

Correct Answer: D

Rationale: Surgical management of ulcerative colitis may be necessary to treat complications such as bowel perforation.

Correct Answer: D

Rationale: The terminal ileum is the most common location for Crohn's disease.