ATI RN
Gastrointestinal System Nursing Exam Questions
1. A home care nurse is visiting a client with a diagnosis of pernicious anemia that developed as a result of gastric surgery. The nurse instructs the client that because the stomach lining produces a decreased amount of intrinsic factor in this disorder, the client will need
- A. Vitamin B12 injections.
- B. Vitamin B6 injections.
- C. An antibiotic.
- D. An antacid.
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.
2. A nurse is giving dietary instructions to a client who has a new colostomy. The nurse encourages the client to eat foods representing which of the following diets for the first 4 to 6 weeks postoperatively?
- A. High-protein
- B. High-carbohydrate
- C. Low-calorie
- D. Low-residue
Correct answer: D
Rationale: For the first 4 to 6 weeks following colostomy formation, the client should take in a low-residue diet. Following this period, the client should eat a high-carbohydrate, high-protein diet. The nurse also instructs the client to add new foods, one at a time, to determine tolerance to that food.
3. Which of the following activities should the nurse encourage the client with a peptic ulcer to avoid?
- A. Chewing gum.
- B. Smoking cigarettes.
- C. Eating chocolate.
- D. Taking acetaminophen (Tylenol).
Correct answer: B
Rationale: Cigarette smoking should be avoided because of its stimulatory effect on gastric secretions. Nicotine also increases the release of epinephrine, which leads to vasoconstriction. The client may chew gum if desired. The client may eat chocolate if desired. A client with a peptic ulcer should check with the physician before taking any over-the-counter drug, but acetaminophen does not typically cause gastric irritation.
4. Which of the following expected outcomes would be appropriate for the client who has ulcerative colitis?
- A. The client maintains a daily record of intake and output.
- B. The client verbalizes the importance of small, frequent feedings.
- C. The client uses a heating pad to decrease abdominal cramping.
- D. The client accepts that a colostomy is inevitable at some time in his life.
Correct answer: B
Rationale: Small, frequent feedings are better tolerated by clients with ulcerative colitis as they lessen the amount of fecal material present in the gastrointestinal tract and decrease stimulation. The client does not need to maintain a daily record of intake and output unless an exacerbation of the disease occurs. A heating pad should not be applied to the intestine as it is inflamed. It is not inevitable that the client will require surgery to treat ulcerative colitis.
5. Lactulose (Chronulac) is prescribed for a client with a diagnosis of hepatic encephalopathy. The nurse would determine that this medication has had a therapeutic effect if which of the following is noted?
- A. Increased red blood cell count
- B. Decreased serum ammonia level
- C. Increased protein level
- D. Decreased white blood cell level
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.
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