ATI RN
Gastrointestinal System Nursing Exam Questions
1. 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.
2. Regina is a 46 y.o. woman with ulcerative colitis. You expect her stools to look like:
- A. Watery and frothy.
- B. Bloody and mucoid.
- C. Firm and well-formed.
- D. Alternating constipation and diarrhea.
Correct answer: B
Rationale: Stools in ulcerative colitis are typically bloody and mucoid.
3. Which of the following laboratory results would be expected in a client with peritonitis?
- A. Partial thromboplastin time above 100 seconds
- B. Hemoglobin level below 10 mg/dL
- C. Potassium level above 5.5 mEq/L
- D. White blood cell count above 15,000
Correct answer: D
Rationale: A white blood cell count above 15,000 is indicative of an infection, such as peritonitis.
4. Radiation therapy is used to treat colon cancer before surgery for which of the following reasons?
- A. Reducing the size of the tumor
- B. Eliminating the malignant cells
- C. Curing the cancer
- D. Helping the bowel heal after surgery
Correct answer: A
Rationale: Radiation therapy is used before surgery to reduce the size of the tumor, making it easier to remove.
5. The nurse is providing discharge instructions to a client following gastrectomy. Which measure will the nurse instruct the client to follow to assist in preventing dumping syndrome?
- A. Eat high-carbohydrate foods
- B. Limit the fluids taken with meals
- C. Ambulate following a meal
- D. Sit in a high-Fowlers position during meals
Correct answer: B
Rationale: To prevent dumping syndrome after a gastrectomy, it is recommended to limit fluids taken with meals to slow down gastric emptying and reduce the symptoms.
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