Nursing Elites

1. The 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 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.

2. 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).

3. The nurse is scheduling diagnostic tests for a client. If all of the following diagnostic tests are ordered, which would be performed last?

• A. Gallbladder series
• B. Barium enema
• C. Barium swallow
• D. Oral cholecystogram

Correct answer: C

Rationale: The correct answer is C, 'Barium swallow.' A barium swallow should be done after a barium enema or gallbladder series to prevent the contrast used in the barium swallow from obstructing the view of other organs. It takes several days for swallowed barium to pass completely out of the gastrointestinal tract. Choices A, B, and D are incorrect because a barium swallow should be the last test performed to ensure clear imaging without interference from residual contrast material.

4. The client being seen in a physician’s office has just been scheduled for a barium swallow the next day. The nurse writes down which of the following instructions for the client to follow before the test?

• A. Fast for 8 hours before the test
• B. Eat a regular supper and breakfast
• C. Continue to take all oral medications as scheduled.
• D. Monitor own bowel movement pattern for constipation

Correct answer: A

Rationale: Fasting for 8 hours ensures that the stomach is empty, which is necessary for an accurate barium swallow test.

5. 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.

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