Correct Answer: A

Rationale: For an 8 oz (240 ml) can of feeding, mix 60 ml of water to achieve the required concentration.

Correct Answer: D

Rationale: For a patient with a ruptured wound and protruding bowel, call the doctor while remaining with the patient, flex the patient's knees, and cover the wound with sterile towels soaked in sterile saline solution.

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

Correct Answer: C

Rationale: Misoprostol (Cytotec) is useful in preventing NSAID-induced peptic ulcer disease.