ATI RN
ATI Gastrointestinal System
1. A client with peptic ulcer is scheduled for a Vagotomy. The client asks the nurse about the purpose of this procedure. The nurse tells the client that the procedure
- A. Decreases food absorption in the stomach.
- B. Heals the gastric mucosa.
- C. Halts stress reactions.
- D. Reduces the stimulus to acid secretions.
Correct answer: D
Rationale: A vagotomy, or cutting of the vagus nerve, is done to eliminate parasympathetic stimulation of gastric secretion, thereby reducing the stimulus to acid secretions. Options A, B, and C are incorrect as a vagotomy does not affect food absorption, heal the gastric mucosa, or halt stress reactions.
2. Which area of the alimentary canal is the most common location for Crohn’s disease?
- A. Ascending colon
- B. Descending colon
- C. Sigmoid colon
- D. Terminal ileum
Correct answer: D
Rationale: The terminal ileum is the most common location for Crohn's disease.
3. Which of the following diets is most commonly associated with colon cancer?
- A. Low-fiber, high fat
- B. Low-fat, high-fiber
- C. Low-protein, high-carbohydrate
- D. Low carbohydrate, high protein
Correct answer: A
Rationale: A low-fiber, high-fat diet is most commonly associated with an increased risk of colon cancer.
4. A client with liver dysfunction is having difficulty with protein metabolism. The nurse anticipates that the results of which of the following serum laboratory studies will be elevated?
- A. Lactic acid
- B. Ammonia
- C. Albumin
- D. Lactase
Correct answer: B
Rationale: During deamination of proteins, the liver splits the amino group from the carbon-containing compound, which results in the formation of ammonia and a carbon residue. The liver then converts the toxic ammonia substance into urea, which can be excreted by the kidneys. Clients with liver dysfunction may have high serum ammonia levels as a result.
5. Hepatic encephalopathy develops when the blood level of which substance increases?
- A. Ammonia
- B. Amylase
- C. Calcium
- D. Potassium
Correct answer: A
Rationale: Hepatic encephalopathy develops when the blood level of ammonia increases.
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