Correct Answer: C

Rationale: Clients with gastric cancer may experience a feeling of fullness due to the presence of the tumor.

Correct Answer: D

Rationale: The correct answer is D: Assessing for symptoms of peritonitis. This intervention is crucial in managing a client with appendicitis because it indicates a possible rupture of the inflamed appendix. Symptoms of peritonitis include severe abdominal pain, fever, nausea, vomiting, and abdominal rigidity. Prompt recognition of these symptoms is essential for timely intervention and surgical management. Choices A, B, and C are incorrect because while assessing for pain is important, assessing for symptoms of peritonitis takes precedence due to the critical nature of appendicitis. Encouraging oral intake of clear fluids and providing discharge teaching are not immediate priorities in the management of a client with acute appendicitis.

Correct Answer: D

Rationale: To prevent constipation, elderly clients should be encouraged to get regular exercise, which promotes bowel motility.

Correct Answer: B

Rationale: Fluid and electrolyte imbalance is a common complication following ileostomy surgery due to the loss of large volumes of fluid and electrolytes through the stoma. Monitoring and replacing fluids and electrolytes is essential.

Correct Answer: A

Rationale: The priority focus of nursing management for a client with peritonitis is fluid and electrolyte balance to prevent shock.