ATI RN
Gastrointestinal System Nursing Exam Questions
1. The nurse aspirates 40 mL of undigested formula from the client’s nasogastric tube. Before administering an intermittent tube feeding, the nurse understands that the 40 mL of gastric aspirate should be
- A. Discarded properly and recorded as output on the client’s intake and output record.
- B. Poured into the nasogastric tube through a syringe with the plunger removed.
- C. Mixed with the formula and poured into the nasogastric tube through a syringe with the plunger removed.
- D. Diluted with water and injected into the nasogastric tube by putting pressure on the plunger.
Correct answer: B
Rationale: After checking the residual feeding contents, the gastric contents are reinstalled into the stomach by removing the syringe bulb or plunger and pouring the gastric contents into the syringe and through the nasogastric tube. Gastric contents should be reinstalled to maintain the client’s electrolyte balance. The gastric contents should be poured into the nasogastric tube through a syringe without a plunger and not injected by putting pressure on the plunger. Gastric contents do not need to be mixed with water or should the contents be discarded.
2. A client is scheduled for oral cholecystography. Which one of the following actions would the nurse plan to implement before the test?
- A. Have the client drink 1000 mL of water.
- B. Ask the client about possible allergies to iodine or shellfish.
- C. Administer an intravenous contrast agent the evening before the test.
- D. Administer tap-water enemas until clear.
Correct answer: B
Rationale: Iodine compounds used as radiographic contrast agents, such as iopanoic acid (Telepaque), should not be administered to the client with iodine and seafood allergies because anaphylaxis may occur.
3. The nurse assesses the client's understanding of the relationship between body position and gastroesophageal reflux. Which response would indicate that the client understands measures to avoid problems with reflux while sleeping?
- A. I can elevate the foot of the bed 4 to 6 inches.
- B. I can sleep on my stomach with my head turned to the left.
- C. I can sleep on my back without a pillow under my head.
- D. I can elevate the head of the bed 4 to 6 inches.
Correct answer: D
Rationale: Sleeping with the head of the bed elevated encourages movement of food through the esophagus by gravity. By fostering esophageal acid clearance, gravity helps keep the acidic pepsin and alkaline biliary secretions from contacting the esophagus. Elevating the foot of the bed does not affect clearance of esophageal acid. Sleeping on the stomach with the head turned to the left will not decrease reflux incidence. Sleeping flat without a pillow under the head does not enhance clearance.
4. The nurse is caring for a client who underwent a subtotal gastrectomy. To manage dumping syndrome, the nurse should advise the client to:
- A. restrict fluid intake to 1 qt (1,000 ml)/day.
- B. drink liquids only with meals.
- C. don't drink liquids 2 hours before meals.
- D. drink liquids only between meals.
Correct answer: D
Rationale: A client who experiences dumping syndrome after a subtotal gastrectomy should be advised to ingest liquids between meals rather than with meals. Taking fluids between meals allows for adequate hydration, reduces the amount of bulk ingested with meals, and aids in preventing rapid gastric emptying. There is no need to restrict the amount of fluids, just the time when the client drinks fluids. Drinking liquids with meals increases the risk of dumping syndrome by increasing the amount of bulk and stimulating rapid gastric emptying. Small amounts of water are allowable before meals.
5. A client with liver dysfunction has low serum levels of thrombin. The nurse provides care, anticipating that this client is most at risk of
- A. Dehydration
- B. Malnutrition
- C. Bleeding
- D. Infection
Correct answer: C
Rationale: Thrombin is produced by the liver and is necessary for normal clotting. When a client with liver dysfunction has low serum levels of thrombin, they are at risk of bleeding due to impaired clotting mechanisms. Dehydration (choice A) is not directly related to low thrombin levels. Malnutrition (choice B) may impact overall health but is not the most immediate concern associated with low thrombin levels. Infection (choice D) is not directly related to the clotting function affected by low thrombin levels.
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