ATI RN
Gastrointestinal System ATI
1. The student nurse is participating in colorectal cancer-screening program. Which patient has the fewest risk factors for colon cancer?
- A. Janice, a 45 y.o. with a 25-year history of ulcerative colitis
- B. George, a 50 y.o. whose father died of colon cancer
- C. Herman, a 60 y.o. who follows a low-fat, high-fiber diet
- D. Sissy, a 72 y.o. with a history of breast cancer
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.
2. Which stoma would you expect a malodorous, enzyme-rich, caustic liquid output that is yellow, green, or brown?
- A. Ileostomy.
- B. Ascending colostomy.
- C. Transverse colostomy.
- D. Descending colostomy.
Correct answer: A
Rationale: An ileostomy would have a malodorous, enzyme-rich, caustic liquid output that is yellow, green, or brown.
3. Before administering an intermittent tube feeding through a nasogastric tube, the nurse assesses for gastric residual. The nurse understands that this procedure is important to
- A. Confirm proper nasogastric tube placement.
- B. Observe gastric contents.
- C. Assess fluid and electrolyte status.
- D. Evaluate absorption of the last feeding.
Correct answer: D
Rationale: Evaluating the absorption of the last feeding is important because administration of a tube feeding to a full stomach could result in overdistention, thus predisposing the client to regurgitation and possible aspiration.
4. 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.
5. The nurse has given instructions to the client with an ileostomy about foods to eat to thicken the stool. The nurse determines that the client needs further instructions if the client stated to eat which of the following foods to make the stools less watery?
- A. Pasta
- B. Boiled rice
- C. Bran
- D. Low-fat cheese
Correct answer: C
Rationale: Bran is high in fiber and should not be consumed to thicken the stool as it will make the stools more watery.
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