ATI RN
ATI Gastrointestinal System Test
1. Annebell is being discharged with a colostomy, and you’re teaching her about colostomy care. Which statement correctly describes a healthy stoma?
- A. At first, the stoma may bleed slightly when touched.
- B. The stoma should appear dark and have a bluish hue.
- C. A burning sensation under the stoma faceplate is normal.
- D. The stoma should remain swollen away from the abdomen.
Correct answer: A
Rationale: A healthy stoma may bleed slightly when touched initially, which is normal.
2. Fistulas are most common with which of the following bowel disorders?
- A. Crohn’s disease
- B. Diverticulitis
- C. Diverticulosis
- D. Ulcerative colitis
Correct answer: A
Rationale: Fistulas are most common in Crohn's disease due to the transmural inflammation that characterizes this condition.
3. Which of the following diagnostic tests should be performed annually over age 50 to screen for colon cancer?
- A. Abdominal CT scan
- B. Abdominal x-ray
- C. Colonoscopy
- D. Fecal occult blood test
Correct answer: D
Rationale: A fecal occult blood test should be performed annually for individuals over age 50 to screen for colon cancer.
4. Which of the following techniques would the nurse use first to determine if a nasogastric tube is positioned in the stomach?
- A. Aspirating with a syringe and observing for the return of gastric contents.
- B. Irrigating with normal saline and observing for the return of solution.
- C. Placing the tube's free end in water and observing for air bubbles.
- D. Instilling air and auscultating over the epigastric area for the presence of the tube.
Correct answer: A
Rationale: The initial way to determine if a nasogastric tube is in the stomach is to apply suction to the tube with a syringe and observe for the return of stomach contents. Then the pH of the aspirate can be measured. This is the method of choice. One would not irrigate until tube placement is confirmed. Observing for air bubbles when the free end of the tube is placed under water is an unacceptable, unsafe method of determining tube placement. Another method is to instill air into the tube with a syringe while auscultating over the epigastric area. Hearing the air enter the stomach helps ensure proper placement, but the method is not foolproof and is no longer considered an effective or preferred way to determine placement.
5. 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.
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