ATI RN
Gastrointestinal System ATI
1. Your patient has a retractable gastric peptic ulcer and has had a gastric vagotomy. Which factor increases as a result of vagotomy?
- A. Peristalsis.
- B. Gastric acidity.
- C. Gastric motility.
- D. Gastric pH.
Correct answer: D
Rationale: After a gastric vagotomy, the gastric pH increases as a result of reduced acid secretion.
2. 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.
3. You’re preparing a patient with a malignant tumor for colorectal surgery and subsequent colostomy. The patient tells you he’s anxious. What should your initial step be in working with this patient?
- A. Determine what the patient already knows about colostomies.
- B. Show the patient some pictures of colostomies.
- C. Arrange for someone who has a colostomy to visit the patient.
- D. Provide the patient with written material about colostomy care.
Correct answer: A
Rationale: When a patient with a malignant tumor is anxious about colorectal surgery and a colostomy, the initial step is to determine what the patient already knows about colostomies.
4. 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.
5. The nurse has provided home care instructions to a client who had a subtotal gastrectomy. The nurse instructs the client regarding the signs and symptoms associated with dumping syndrome. Which of the following signs and symptoms, if identified by the client, indicates an understanding of this potential complication following gastrointestinal surgery?
- A. Hiccups and diarrhea
- B. Fatigue and abdominal pain
- C. Constipation and fever
- D. Diaphoresis and diarrhea
Correct answer: D
Rationale: The correct answer is D: Diaphoresis and diarrhea. Dumping syndrome occurs after gastric surgery when food moves quickly from the stomach to the intestine, causing fluid shifts and leading to symptoms like weakness, dizziness, diaphoresis, flushing, hypotension, abdominal pain, distension, hyperactive bowel sounds, and diarrhea. Choices A, B, and C do not reflect the typical signs and symptoms of dumping syndrome.
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