ATI RN
ATI Gastrointestinal System
1. A 40-year-old male client has been hospitalized with peptic ulcer disease. He is being treated with a histamine receptor antagonist (cimetidine), antacids, and diet. The nurse doing discharge planning will teach him that the action of cimetidine is to:
- A. Reduce gastric acid output
- B. Protect the ulcer surface
- C. Inhibit the production of hydrochloric acid (HCl)
- D. Inhibit vagus nerve stimulation
Correct answer: C
Rationale: Cimetidine inhibits the production of hydrochloric acid (HCl), which helps to treat peptic ulcer disease.
2. Your patient has a retractable gastric peptic ulcer and has had a gastric vagotomy. Which factor increases as a result of vagotomy?
- A. Peristalsis.
- B. Gastric acidity.
- C. Gastric motility.
- D. Gastric pH.
Correct answer: D
Rationale: After a gastric vagotomy, the gastric pH increases as a result of reduced acid secretion.
3. Lactulose (Chronulac) is prescribed for a client with a diagnosis of hepatic encephalopathy. The nurse would determine that this medication has had a therapeutic effect if which of the following is noted?
- A. Increased red blood cell count
- B. Decreased serum ammonia level
- C. Increased protein level
- D. Decreased white blood cell level
Correct answer: B
Rationale: Lactulose is prescribed for the client with hepatic encephalopathy to reduce bacterial breakdown of protein in the bowel. The medication creates an acidic environment in the bowel and causes the ammonia to leave the bloodstream and enter the colon. Ammonia then becomes trapped in the bowel. Lactulose also has a laxative effect that allows for the elimination of the ammonia.
4. You’re caring for a patient with a sigmoid colostomy. The stool from this colostomy is:
- A. Formed
- B. Semisolid
- C. Semiliquid
- D. Watery
Correct answer: A
Rationale: The stool from a sigmoid colostomy is typically formed.
5. Michael, a 42 y.o. man is admitted to the med-surg floor with a diagnosis of acute pancreatitis. His BP is 136/76, pulse 96, Resps 22 and temp 101. His past history includes hyperlipidemia and alcohol abuse. The doctor prescribes an NG tube. Before inserting the tube, you explain the purpose to patient. Which of the following is a most accurate explanation?
- A. It empties the stomach of fluids and gas.
- B. It prevents spasms at the sphincter of Oddi.
- C. It prevents air from forming in the small intestine and large intestine.
- D. It removes bile from the gallbladder.
Correct answer: A
Rationale: Explain to the patient that the NG tube is used to empty the stomach of fluids and gas, which helps relieve symptoms of acute pancreatitis.
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