Correct Answer: C

Rationale: Coffee-ground emesis is a sign of upper gastrointestinal bleeding that occurred approximately 2 hours earlier. It results from the breakdown of blood in the stomach due to digestive enzymes, giving it a coffee-ground appearance. Choice A is incorrect because coffee-ground emesis indicates older, partially digested blood, not fresh active bleeding. Choice B is incorrect as gastric lavage is not indicated for coffee-ground emesis. Choice D is incorrect because a transfusion of packed RBCs is not the immediate management for this presentation.

Correct Answer: C

Rationale: The correct answer is C: Provide frequent mouth care. In a patient with peritonitis who is NPO and thirsty, the priority is to maintain oral hygiene and provide comfort by moistening the mouth with frequent mouth care. This helps alleviate the sensation of thirst and maintains oral health. Increasing the IV infusion rate (choice A) may not address the patient's discomfort directly related to thirst. Using diversion activities (choice B) is not as critical as addressing the patient's immediate need for oral care. Giving ice chips every 15 minutes (choice D) is not recommended for a patient with peritonitis who is NPO, as it can lead to complications or worsen the condition.

Correct Answer: B

Rationale: Before discharge, inform the patient that the drainage will decrease daily until the bile duct heals.

Correct Answer: C

Rationale: Herman, a 60 y.o. who follows a low-fat, high-fiber diet, has the fewest risk factors for colon cancer.

Correct Answer: C

Rationale: Providing frequent mouth care is the priority for a patient with peritonitis who is NPO and complaining of thirst.