Nursing Elites

1. The client with chronic renal failure is on a fluid restriction. Which of the following statements by the client indicates that the teaching has been effective?

• A. I will limit my fluid intake to prevent fluid overload.
• B. I can drink as much fluid as I want as long as I take my medication.
• C. I will skip dialysis sessions if I feel tired.
• D. I will limit my fluid intake to 1 liter per day.

Correct answer: A

Rationale: Choice A is the correct answer because it demonstrates the client's understanding of the need to limit fluid intake to prevent fluid overload, which is crucial in managing chronic renal failure. Adequate fluid restriction is essential to prevent complications such as fluid overload and electrolyte imbalances. Choice B is incorrect as it promotes excessive fluid intake, which can worsen the client's condition by putting additional stress on the kidneys. Choice C is incorrect as skipping dialysis sessions can lead to a buildup of toxins in the body, worsening renal failure and potentially leading to life-threatening complications. Choice D is incorrect because limiting fluid intake to a specific volume may not be appropriate for all clients and can vary depending on individual needs, medical condition, and healthcare provider recommendations.

2. Which lab result would be most indicative of renal failure?

• A. Elevated creatinine levels.
• B. Low potassium levels.
• C. Low calcium levels.
• D. High sodium levels.

Correct answer: A

Rationale: The correct answer is A: Elevated creatinine levels. Creatinine is a waste product that is normally filtered by the kidneys. Elevated creatinine levels indicate impaired kidney function, which is commonly seen in renal failure. Choice B, low potassium levels, is not typically associated with renal failure. In fact, renal failure is more likely to cause high potassium levels due to the kidneys' inability to excrete potassium effectively. Choice C, low calcium levels, are not directly indicative of renal failure. Renal failure can lead to disturbances in calcium levels, but low calcium levels alone are not a specific marker for renal failure. Choice D, high sodium levels, are also not typically associated with renal failure. In renal failure, there may be disturbances in sodium levels, but high sodium levels alone are not a direct indicator of renal failure.

3. Which of the following lab values would be most concerning in a patient receiving heparin therapy?

• A. Elevated hemoglobin levels.
• B. Low platelet count.
• C. High potassium levels.
• D. Low sodium levels.

Correct answer: B

Rationale: A low platelet count is most concerning in patients receiving heparin therapy due to the risk of heparin-induced thrombocytopenia. Heparin can sometimes cause a drop in platelet count, leading to a potentially serious condition where blood does not clot as it should. This can result in excessive bleeding or clot formation in blood vessels. Elevated hemoglobin levels, high potassium levels, and low sodium levels are not typically associated with heparin therapy and are less likely to cause immediate concerns or complications in this context.

4. What is the most common side effect of diuretics such as furosemide (Lasix)?

• A. Hypokalemia.
• B. Hyperkalemia.
• C. Hypernatremia.
• D. Hyponatremia.

Correct answer: A

Rationale: The correct answer is 'Hypokalemia.' Diuretics like furosemide increase the excretion of potassium, leading to hypokalemia as a common side effect. Hyperkalemia (choice B) is the opposite condition characterized by high potassium levels, which is not typically associated with furosemide use. Hypernatremia (choice C) is increased sodium levels, while hyponatremia (choice D) is decreased sodium levels, neither of which are the most common side effects of furosemide. Therefore, choice A is the best answer.

5. A serum phenytoin determination is prescribed for a client with a seizure disorder who is taking phenytoin (Dilantin). Which result indicates that the prescribed dose of phenytoin is therapeutic?

• A. 3 mcg/mL
• B. 8 mcg/mL
• C. 16 mcg/mL
• D. 28 mcg/mL

Correct answer: C

Rationale: The correct answer is 16 mcg/mL (Choice C). The therapeutic serum phenytoin range is typically 10 to 20 mcg/mL. A level below this range may lead to continued seizure activity, indicating subtherapeutic levels. Choices A, B, and D are below the therapeutic range and would not be considered therapeutic for a client with a seizure disorder on phenytoin therapy.

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