ATI RN
ATI Gastrointestinal System Test
1. The nurse evaluates the client’s stoma during the initial post-op period. Which of the following observations should be reported immediately to the physician?
- A. The stoma is slightly edematous
- B. The stoma is dark red to purple
- C. The stoma oozes a small amount of blood
- D. The stoma does not expel stool
Correct answer: B
Rationale: A dark red to purple stoma may indicate compromised blood flow or ischemia, which requires immediate medical attention. This color change could be a sign of inadequate blood supply to the stoma tissue, leading to tissue damage or necrosis. Reporting this observation promptly is crucial to prevent further complications. Choices A, C, and D are not indicative of immediate medical concern. A slightly edematous stoma, oozing a small amount of blood, or not expelling stool may not be uncommon findings during the initial post-op period and can be managed without urgent intervention.
2. Which of the following mechanisms can facilitate the development of diverticulosis into diverticulitis?
- A. Treating constipation with chronic laxative use, leading to dependence on laxatives
- B. Chronic constipation causing an obstruction, reducing forward flow of intestinal contents
- C. Herniation of the intestinal mucosa, rupturing the wall of the intestine
- D. Undigested food blocking the diverticulum, predisposing the area to bacterial invasion
Correct answer: D
Rationale: The correct answer is D. Undigested food blocking the diverticulum can lead to bacterial invasion, causing inflammation and turning diverticulosis into diverticulitis. Choices A, B, and C do not directly facilitate the development of diverticulitis. Choice A involves a different mechanism related to laxative use, choice B describes a complication of chronic constipation but does not necessarily lead to diverticulitis, and choice C refers to a different condition involving herniation of the intestinal mucosa.
3. 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.
4. Which of the following substances is most likely to cause gastritis?
- A. Milk
- B. Bicarbonate of soda or baking soda
- C. Enteric-coated aspirin
- D. Nonsteroidal anti-inflammatory drugs (NSAIDs)
Correct answer: D
Rationale: The correct answer is D, Nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs are known to cause gastritis by irritating the stomach lining. Choice A, Milk, is unlikely to cause gastritis and is actually a common remedy for mild gastritis symptoms. Choice B, Bicarbonate of soda or baking soda, is often used to relieve heartburn and indigestion, not cause gastritis. Choice C, Enteric-coated aspirin, is less likely to cause gastritis compared to NSAIDs because the enteric coating helps protect the stomach lining from irritation.
5. The most important pathophysiologic factor contributing to the formation of esophageal varices is:
- A. Decreased prothrombin formation
- B. Decreased albumin formation by the liver
- C. Portal hypertension
- D. Increased central venous pressure
Correct answer: C
Rationale: Portal hypertension is the most important pathophysiologic factor contributing to the formation of esophageal varices.
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