Nursing Elites

1. Warfarin (Coumadin) is an anticoagulant and interferes with the action of:

• A. Platelets
• B. Vitamin K
• C. Calcium
• D. Vitamin B12

Correct answer: B

Rationale: The correct answer is B: Vitamin K. Warfarin works by inhibiting the action of vitamin K, which is crucial for the synthesis of clotting factors in the blood. By interfering with vitamin K, warfarin decreases the production of these clotting factors, thereby prolonging the time it takes for blood to clot. This is why individuals on warfarin therapy need to monitor their vitamin K intake. Choices A, C, and D are incorrect because warfarin does not directly interfere with platelets, calcium, or vitamin B12.

2. What is the best way to manage a patient's intake of dietary fiber?

• A. Increase intake gradually
• B. Increase intake suddenly
• C. Decrease intake abruptly
• D. Maintain a high intake

Correct answer: A

Rationale: The best way to manage a patient's intake of dietary fiber is to increase it gradually. This approach helps prevent gastrointestinal discomfort that may arise from a sudden increase in fiber intake. Choice B is incorrect because increasing intake suddenly can lead to digestive issues. Choice C is incorrect as decreasing fiber intake abruptly may not be necessary and can impact overall health. Choice D is incorrect as maintaining a high intake without considering the patient's current intake level can also cause digestive problems.

3. A patient with Crohn’s disease is experiencing diarrhea. Which dietary recommendation is appropriate?

• A. High-fiber diet
• B. Low-residue diet
• C. High-fat diet
• D. High-protein diet

Correct answer: B

Rationale: A low-residue diet is appropriate for a patient with Crohn’s disease experiencing diarrhea because it helps reduce bowel movements and manage symptoms. Choice A, a high-fiber diet, can exacerbate diarrhea in Crohn’s disease due to increased bulk and fermentation in the gut. Choice C, a high-fat diet, may be hard to digest and can worsen symptoms. Choice D, a high-protein diet, can be taxing on the digestive system and may not provide the relief needed for diarrhea in Crohn’s disease.

4. For a patient with a history of liver disease, which type of diet is most appropriate?

• A. High-protein
• B. High-carbohydrate
• C. Low-protein
• D. Low-fat

Correct answer: D

Rationale: A low-fat diet is the most appropriate for a patient with a history of liver disease. This diet helps reduce liver stress and manage symptoms associated with liver disease. High-protein and high-carbohydrate diets can strain the liver and worsen the condition. A low-protein diet may be necessary in cases of liver disease with hepatic encephalopathy, but in general, a low-fat diet is recommended to support liver function and overall health.

5. A client is prescribed lisinopril (Zestril) for the treatment of hypertension. He asks the nurse about possible adverse effects. The nurse should inform him about which common adverse effects of angiotensin-converting enzyme (ACE) inhibitors?

• A. Constipation
• B. Dizziness
• C. Headache
• D. B, C

Correct answer: D

Rationale: The correct answer is D: 'Dizziness' and 'Headache'. ACE inhibitors like lisinopril are known to cause these common side effects due to their blood pressure-lowering effects. Choice A, 'Constipation', is not a common adverse effect associated with ACE inhibitors. While constipation can be a side effect of some medications, it is not typically seen with ACE inhibitors. Therefore, options A and B are incorrect choices.

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