ATI RN
Gastrointestinal System Nursing Exam Questions
1. A client who has had gastrectomy is not producing sufficient intrinsic factor. The nurse interprets that the client has lost the ability to absorb cyanocobalamin (vitamin B12) in the
- A. Stomach.
- B. Small intestine.
- C. Large intestine.
- D. Colon.
Correct answer: B
Rationale: Intrinsic factor is produced in the stomach but is used to aid in the absorption of vitamin B12 in the small intestine. Vitamin B12 is not absorbed in the large intestine (options 3 and 4).
2. The client with a colostomy has an order for irrigation of the colostomy. The nurse used which solution for irrigation?
- A. Distilled water
- B. Tap water
- C. Sterile water
- D. Lactated Ringer’s
Correct answer: B
Rationale: Tap water at body temperature is generally used for colostomy irrigation unless the local water supply is not safe for drinking, in which case bottled water can be used.
3. The nurse is caring for a client with a diagnosis of cirrhosis and is monitoring the client for signs of portal hypertension. Which initial sign, if noted in the client, indicates the presence of portal hypertension?
- A. Flat neck veins
- B. Hypotension
- C. Weak pulse
- D. Crackles on auscultation of the lungs
Correct answer: D
Rationale: Clinical signs and symptoms or portal hypertension are identical to those of heart failure and include jugular vein distention, lung crackles, and decreased perfusion to all organs. Initially, the client may have hypertension, flushed skin, and a bounding pulse.
4. The physician orders a Salem sump tube for gastrointestinal intubation. The nurse prepares for the insertion and obtains which of the following items from the supply room?
- A. A tube with a single lumen that connects to suction
- B. A tube with a large lumen and an air vent
- C. A Sengstaken-Blakemore tube
- D. A Dobbhoff weighted tube
Correct answer: B
Rationale: A tube with a large lumen and an air vent is a Salem sump tube. A tube with a single lumen is called a Levin’s tube. A Sengstaken-Blakemore tube is used to control bleeding in the esophagus. A Dobbhoff weighted tube is used for feedings.
5. If a client had irritable bowel syndrome, which of the following diagnostic tests would determine if the diagnosis is Crohn’s disease or ulcerative colitis?
- A. Abdominal computed tomography (CT) scan
- B. Abdominal x-ray
- C. Barium swallow
- D. Colonoscopy with biopsy
Correct answer: D
Rationale: A colonoscopy with biopsy is the most definitive diagnostic test to differentiate between Crohn's disease and ulcerative colitis.
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