Nursing Elites

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

• A. It dissolves blood clots
• B. It prevents the blood from clotting
• C. It thins the blood
• D. It decreases the risk of infection

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. A client is receiving a low dose of dopamine (Intropin) IV for the treatment of hypotension. Which indicator reflects that the medication is having the desired effect?

• A. Increased heart rate
• B. Increased urinary output
• C. Increased blood pressure
• D. Increased respiratory rate

Correct answer: C

Rationale: Increased blood pressure is the desired effect of administering dopamine (Intropin) to treat hypotension. Dopamine acts by stimulating adrenergic receptors, leading to vasoconstriction and increased cardiac output. This results in an elevation of blood pressure. Choices A, B, and D are incorrect as they do not directly reflect the therapeutic action of dopamine in treating hypotension. Increased heart rate may indicate the body compensating for low blood pressure, increased urinary output is more related to kidney function, and increased respiratory rate is often seen in response to respiratory issues, not the action of dopamine on hypotension.

3. A nurse is assessing the learning needs of a client who is diagnosed with Addison's disease. Which statement indicates that the client needs further teaching?

• A. I should take my medications daily to replace necessary hormones
• B. I need to eat a diet high in protein and carbohydrates
• C. I should avoid drinking fluids with caffeine
• D. I should notify my healthcare provider if I start feeling dizzy

Correct answer: B

Rationale: The correct answer is B. A diet high in protein and carbohydrates is not specifically required for Addison's disease. The focus should be on maintaining a balanced diet that is rich in fruits, vegetables, whole grains, and adequate protein sources. Choice A is correct as adherence to medication therapy is crucial in managing Addison's disease. Choice C is correct as caffeine can exacerbate symptoms of Addison's disease. Choice D is correct as dizziness can be a sign of adrenal crisis in Addison's disease, and prompt notification of healthcare providers is essential.

4. A client in the oliguric phase of acute renal failure (ARF) has a 24-hour urine output of 400 ml. How much oral intake should the nurse allow this client to have during the next 24 hours?

• A. Encourage oral fluids as tolerated
• B. Decrease oral intake to 200 ml
• C. Allow the client to have exactly 400 ml oral intake
• D. Limit oral intake to 900 to 1,000 ml

Correct answer: D

Rationale: In the oliguric phase of acute renal failure (ARF), the goal is to prevent fluid overload. Since the client has a low urine output of 400 ml in 24 hours, limiting oral intake to 900 to 1,000 ml is appropriate. Encouraging unrestricted oral fluids (Choice A) can exacerbate fluid overload. Decreasing oral intake to 200 ml (Choice B) would be too restrictive and may lead to dehydration. Allowing the client to have exactly 400 ml oral intake (Choice C) would not account for other sources of fluid intake and output, potentially resulting in fluid imbalance.

5. The nurse is preparing to administer an IM dose of vitamin B1 (Thiamine) to a male client experiencing acute alcohol withdrawal and peripheral neuritis. The client belligerently states, 'What do you think you're doing?' How should the nurse respond?

• A. I cannot give you this medication until you calm down.
• B. This shot will help relieve the pain in your feet.
• C. Would you prefer to learn to administer your own shot?
• D. You will feel calmer and less jittery after this shot.

Correct answer: B

Rationale: Choice B is the correct answer because it addresses the client's concern by explaining that the shot will help relieve the pain in his feet, which is a symptom of peripheral neuritis. This response shows empathy and provides the client with a clear benefit of receiving the medication. Choices A, C, and D do not directly address the client's immediate concern about the injection and its purpose, making them less suitable responses. Choice A focuses on the client's behavior rather than the therapeutic effect of the injection. Choice C shifts the responsibility to the client to administer the shot, which may not be appropriate in this situation. Choice D mentions feeling calmer and less jittery, which is not directly related to the client's current complaint of pain in the feet.

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