ATI RN
Gastrointestinal System Nursing Exam Questions
1. Cholestyramine resin (Questran Light) is prescribed for the client with an elevated serum cholesterol level. The nurse would instruct the client to take the medication
- A. After meals.
- B. Mixed with fruit juice.
- C. Via rectal suppository.
- D. At least 3 hours before meals.
Correct answer: B
Rationale: Cholestyramine resin binds with bile salts in the intestines to form a compound that is excreted in the feces. The client should be instructed to mix the medication with 3 to 6 oz of water, milk, fruit juice, or soup. The medication should be administered before meals. The medication is not administered via rectal suppository.
2. 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.
3. A 30-year-old woman is admitted to the hospital with complaints of severe abdominal cramping and diarrhea. The nurse evaluates the effectiveness of the patient's intravenous therapy. Which of the following laboratory tests BEST reflects hydration status?
- A. Erythrocyte sedimentation rate.
- B. White blood cell count.
- C. Hematocrit.
- D. Serum glucose.
Correct answer: C
Rationale: Hematocrit is the best indicator of hydration status because it reflects the proportion of red blood cells in the blood. An increased hematocrit indicates dehydration, as the blood becomes more concentrated due to fluid loss. Erythrocyte sedimentation rate (Choice A) is a nonspecific marker of inflammation, not hydration status. White blood cell count (Choice B) is an indicator of infection or inflammation. Serum glucose (Choice D) is used to monitor blood sugar levels, not hydration status.
4. When assessing the client with celiac disease, the nurse can expect to find which of the following?
- A. Steatorrhea
- B. Jaundiced sclerae
- C. Clay-colored stools
- D. Widened pulse pressure
Correct answer: A
Rationale: Because celiac disease destroys the absorbing surface of the intestine, fat isn't absorbed but is passed in the stool. Steatorrhea is bulky, fatty stools that have a foul odor. Jaundiced sclerae result from elevated bilirubin levels. Clay-colored stools are seen with biliary disease when bile flow is blocked. Celiac disease doesn't cause a widened pulse pressure.
5. Your teaching Anthony how to use his new colostomy. How much skin should remain exposed between the stoma and the ring of the appliance?
- A. 1/16”
- B. 1/4″
- C. 1/2”
- D. 1”
Correct answer: A
Rationale: When teaching a patient how to use a colostomy, only 1/16” of skin should remain exposed between the stoma and the ring of the appliance to prevent skin irritation.
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