Correct Answer: A

Rationale: A lack of the intrinsic factor needed to absorb vitamin B12 occurs in pernicious anemia. Vitamin B12 is needed for the maturation of red blood cells. Vitamin B6 is not necessarily needed for pernicious anemia and can be taken orally. An antibiotic and antacids may be prescribed for certain types of gastric ulcers.

Correct Answer: C

Rationale: The client with a mild case of ulcerative colitis is often advised to follow a diet low in roughage and avoid milk. This dietary approach helps reduce the frequency of diarrhea in these clients. Therefore, the correct therapeutic diet for the client with ulcerative colitis in this scenario is a low-roughage diet without milk. Choices A, B, and D are incorrect because high-fat, high-protein, and low-roughage with milk diets are not typically recommended for clients with ulcerative colitis, especially those with mild cases.

Correct Answer: C

Rationale: Peripheral tissue perfusion is a major concern in the postoperative period following an abdominal aneurysm repair. Peripheral pulses should be checked frequently during the first 24 hours. A weak or absent pulse may be a sign of embolization or graft closure, especially if accompanied by a pale, cold, mottled extremity; the nurse should immediately report this to the surgeon. Risk for infection, deficient knowledge, and activity intolerance are all important nursing diagnoses in the postoperative period, but peripheral tissue perfusion is the most immediate concern.

Correct Answer: B

Rationale: Lactulose is prescribed for the client with hepatic encephalopathy to reduce bacterial breakdown of protein in the bowel. The medication creates an acidic environment in the bowel and causes the ammonia to leave the bloodstream and enter the colon. Ammonia then becomes trapped in the bowel. Lactulose also has a laxative effect that allows for the elimination of the ammonia.

Correct Answer: D

Rationale: The most appropriate response in this situation is to seek clarification from the client by saying, 'I'm not sure that I don't understand. Would you please explain?' This response shows empathy and a willingness to listen, encouraging the client to elaborate on their concerns. False reassurance (Choice A) is not helpful as it dismisses the client's feelings. Suggesting to talk more with the doctor (Choice B) may deflect from addressing the client's immediate concerns. Expressing disbelief (Choice C) can create a barrier to open communication, making the client feel unsupported.