Nursing Elites

1. The client with chronic renal failure is receiving instruction on dietary restrictions. Which of the following food items should the client be instructed to avoid?

• A. Bananas.
• B. Apples.
• C. Rice.
• D. Potatoes.

Correct answer: A

Rationale: The correct answer is A: Bananas. Bananas are high in potassium, and individuals with chronic renal failure are often advised to limit potassium intake to prevent hyperkalemia. Apples, rice, and potatoes are lower in potassium and can be included in moderation in the diet of clients with chronic renal failure.

2. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?

• A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
• B. A serum drug level greater than the MEC broadens the spectrum of the drug.
• C. A serum drug level greater than the MEC helps eradicate bacterial infections.
• D. A serum drug level greater than the MEC increases the therapeutic index.

Correct answer: C

Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.

3. Which of the following is a common sign of meningitis?

• A. Joint pain.
• B. Severe headache.
• C. Stiff neck.
• D. Coughing up blood.

Correct answer: C

Rationale: A stiff neck is a common sign of meningitis due to inflammation of the meninges. Meningitis typically presents with symptoms such as fever, severe headache, nausea, vomiting, sensitivity to light, and a stiff neck. Joint pain (Choice A) is not a typical symptom of meningitis and is more commonly associated with other conditions. While severe headache (Choice B) can be a symptom of meningitis, it is not as specific as a stiff neck. Coughing up blood (Choice D) is not a typical sign of meningitis and may indicate other respiratory or cardiovascular issues.

4. A client has a urine specific gravity of 1.040. What action should the nurse take?

• A. Obtain a urine culture and sensitivity.
• B. Place the client on restricted fluids.
• C. Assess the client’s creatinine level.
• D. Increase the client’s fluid intake.

Correct answer: D

Rationale: A urine specific gravity of 1.040 is higher than the normal range (1.005 to 1.030) and can indicate dehydration, decreased kidney blood flow, or the presence of antidiuretic hormone. In this situation, the priority action should be to increase the client's fluid intake to address the high specific gravity. Obtaining a urine culture, placing the client on restricted fluids, or assessing the creatinine level would not directly address the underlying issue of high urine specific gravity caused by dehydration or other factors.

5. A client is scheduled for an arteriogram. The nurse should explain to the client that the arteriogram will confirm the diagnosis of occlusive arterial disease by:

• A. Showing the location of the obstruction and the collateral circulation.
• B. Scanning the affected extremity and identifying the areas of volume changes.
• C. Using ultrasound to estimate the velocity changes in the blood vessels.
• D. Determining how long the client can walk.

Correct answer: A

Rationale: The correct answer is A: Showing the location of the obstruction and the collateral circulation. An arteriogram is a diagnostic procedure that involves injecting a contrast agent to visualize the blood vessels and identify the location of any obstructions. This helps confirm the diagnosis of occlusive arterial disease by showing where the blockage is located and how collateral circulation is compensating for the reduced blood flow. Choices B, C, and D are incorrect because scanning the extremity, estimating velocity changes with ultrasound, or determining walking distance are not the primary purposes of an arteriogram in diagnosing occlusive arterial disease.

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