ATI RN
ATI Gastrointestinal System
1. 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.
2. A nurse is assigned to a 40-year-old client who has a diagnosis of chronic pancreatitis. The nurse reviews the laboratory result, anticipating a laboratory report that indicates a serum amylase level of
- A. 45 units/L
- B. 100 units/L
- C. 300 units/L
- D. 500 units/L
Correct answer: C
Rationale: The normal serum amylase level is 25 to 151 IU/L. With chronic cases of pancreatitis, the rise in serum amylase levels usually does not exceed three times the normal value. In acute pancreatitis, the value may exceed five times the normal value. Options 1 and 2 are within normal limits. Option 3 is an extremely elevated level seen in acute pancreatitis.
3. 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.
4. Your patient with peritonitis is NPO and complaining of thirst. What is your priority?
- A. Increase the I.V. infusion rate.
- B. Use diversion activities.
- C. Provide frequent mouth care.
- D. Give ice chips every 15 minutes.
Correct answer: C
Rationale: Providing frequent mouth care is the priority for a patient with peritonitis who is NPO and complaining of thirst.
5. Which of the following best describes the method of action of medications, such as ranitidine (Zantac), which are used in the treatment of peptic ulcer disease?
- A. Neutralize acid
- B. Reduce acid secretions
- C. Stimulate gastrin release
- D. Protect the mucosal barrier
Correct answer: B
Rationale: Medications like ranitidine (Zantac) are H2 receptor antagonists that reduce acid secretions in the stomach, helping to treat peptic ulcer disease.
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