ATI RN
ATI Gastrointestinal System
1. The client with peptic ulcer disease is scheduled for a pyloroplasty. The client asks the nurse about the procedure. The nurse plans to respond knowing that a pyloroplasty involves:
- A. Cutting the vagus nerve
- B. Removing the distal portion of the stomach
- C. Removal of the ulcer and a large portion of the cells that produce hydrochloric acid
- D. An incision and resuturing of the pylorus to relax the muscle and enlarge the opening from the stomach to the duodenum.
Correct answer: D
Rationale: A pyloroplasty involves making an incision in the pylorus (the opening from the stomach to the duodenum) and then resuturing it to relax the muscle and enlarge the opening.
2. 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.
3. Which of the following symptoms may be exhibited by a client with Crohn’s disease?
- A. Bloody diarrhea
- B. Narrow stools
- C. N/V
- D. Steatorrhea
Correct answer: D
Rationale: Clients with Crohn's disease may exhibit symptoms such as steatorrhea, which is the presence of excess fat in the stool.
4. When teaching a community group about measures to prevent colon cancer, which instruction should the nurse include?
- A. Limit fat intake to 20% to 25% of your total daily calories.
- B. Include 15 to 20 grams of fiber into your daily diet.
- C. Get an annual rectal examination after age 35.
- D. Undergo sigmoidoscopy annually after age 50.
Correct answer: A
Rationale: Limiting fat intake is a recommended measure to reduce the risk of colon cancer. Including fiber, undergoing annual rectal examinations, and sigmoidoscopy are also important, but limiting fat intake is directly related to reducing cancer risk.
5. A client who has had gastrectomy is not producing sufficient intrinsic factor. The nurse interprets that the client has lost the ability to absorb cyanocobalamin (vitamin B12) in the
- A. Stomach.
- B. Small intestine.
- C. Large intestine.
- D. Colon.
Correct answer: B
Rationale: Intrinsic factor is produced in the stomach but is used to aid in the absorption of vitamin B12 in the small intestine. Vitamin B12 is not absorbed in the large intestine (options 3 and 4).
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