ATI RN
Gastrointestinal System Nursing Exam Questions
1. A nurse has been caring for a client with a Sengstaken-Blakemore tube. The physician arrives on the nursing unit and deflates the esophageal balloon. The nurse should monitor the client most closely for which of the following?
- A. Swelling of the abdomen
- B. Bloody diarrhea
- C. Vomiting blood
- D. An elevated temperature and arise in blood pressure
Correct answer: C
Rationale: A Sengstaken-Blakemore tube is inserted into a client with a diagnosis of cirrhosis and ruptured esophageal varices. The tube has an esophageal and a gastric balloon. The esophageal balloon exerts pressure on the bleeding. The pressure of the esophageal balloon is released at intervals to decrease the risk of trauma to esophageal tissues, including esophageal rupture or necrosis. When the balloon is deflated the client may begin to bleed again from the esophageal varices, noted by vomiting of blood.
2. Which of the following substances is most likely to cause gastritis?
- A. Milk
- B. Bicarbonate of soda or baking soda
- C. Enteric-coated aspirin
- D. Nonsteroidal anti-inflammatory drugs (NSAIDs)
Correct answer: D
Rationale: The correct answer is D, Nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs are known to cause gastritis by irritating the stomach lining. Choice A, Milk, is unlikely to cause gastritis and is actually a common remedy for mild gastritis symptoms. Choice B, Bicarbonate of soda or baking soda, is often used to relieve heartburn and indigestion, not cause gastritis. Choice C, Enteric-coated aspirin, is less likely to cause gastritis compared to NSAIDs because the enteric coating helps protect the stomach lining from irritation.
3. A client presents to the emergency room, reporting that he has been vomiting every 30 to 40 minutes for the past 8 hours. Frequent vomiting puts him at risk for which of the following?
- A. Metabolic acidosis with hyperkalemia
- B. Metabolic acidosis with hypokalemia
- C. Metabolic alkalosis with hyperkalemia
- D. Metabolic alkalosis with hypokalemia
Correct answer: D
Rationale: Frequent vomiting can lead to metabolic alkalosis with hypokalemia due to the loss of stomach acid and electrolytes.
4. An intubated patient is receiving continuous enteral feedings through a Salem sump tube at a rate of 60ml/hr. Gastric residuals have been 30-40ml when monitored Q4H. You check the gastric residual and aspirate 220ml. What is your first response to this finding?
- A. Notify the doctor immediately.
- B. Stop the feeding, and clamp the NG tube.
- C. Discard the 220ml, and clamp the NG tube.
- D. Give a prescribed GI stimulant such as metoclopramide (Reglan).
Correct answer: B
Rationale: If gastric residuals are high during continuous enteral feedings, the first response is to stop the feeding and clamp the NG tube.
5. A client has been diagnosed with gastroesophageal reflux disease. The nurse interprets that the client has dysfunction of which of the following parts of the digestive system?
- A. Chief cells of the stomach
- B. Parietal cells of the stomach
- C. Lower esophageal sphincter
- D. Upper esophageal sphincter
Correct answer: C
Rationale: The lower esophageal sphincter is a functional sphincter that normally remains closed except when food or fluids are swallowed. If relaxation of this sphincter occurs, the client could experience symptoms of gastroesophageal reflux disease.
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