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 nurse is caring for a client diagnose with pancreatitis. The nurse anticipates that the client would not experience an elevation of which of the following enzymes?
- A. Lipase
- B. Lactase
- C. Amylase
- D. Trypsin
Correct answer: B
Rationale: Lactase is produced in the small intestine and aids in splitting neutral fats into glycerol and fatty acids. Lipase, amylase, and trypsin are produced in the pancreas and aid in the digestion of fats, starches, and proteins, respectively.
3. 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).
4. A nurse is preparing to remove a nasogastric tube from a client. The nurse would instruct the client to do which of the following just before the nurse removes the tube?
- A. To perform Valsalva’s maneuver
- B. To take hold and hold a deep breath
- C. To exhale
- D. To inhale and exhale quickly
Correct answer: B
Rationale: When the nurse removes a nasogastric tube, the client is instructed to take and hold a deep breath. This will be obstructed temporarily during the tube removal. This allows for easy withdrawal through the esophagus into the nose. The nurse removes the tube with one smooth, continuous pull.
5. A home care nurse is visiting a client with a diagnosis of pernicious anemia that developed as a result of gastric surgery. The nurse instructs the client that because the stomach lining produces a decreased amount of intrinsic factor in this disorder, the client will need
- A. Vitamin B12 injections.
- B. Vitamin B6 injections.
- C. An antibiotic.
- D. An antacid.
Correct answer: A
Rationale: A lack of the intrinsic factor needed to absorb vitamin B12 occurs in pernicious anemia. Vitamin B12 is needed for the maturation of red blood cells. Vitamin B6 is not necessarily needed for pernicious anemia and can be taken orally. An antibiotic and antacids may be prescribed for certain types of gastric ulcers.
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