Nursing Elites

1. What is the most common cause of peptic ulcers?

• A. Helicobacter pylori infection
• B. NSAID use
• C. Excessive alcohol consumption
• D. Stress

Correct answer: A

Rationale: Helicobacter pylori infection is the most common cause of peptic ulcers. This bacterium can weaken the protective mucous coating of the stomach and duodenum, allowing acid to get through to the sensitive lining beneath. NSAID use (Choice B) can also cause peptic ulcers by disrupting the stomach's mucosal barrier. Excessive alcohol consumption (Choice C) and stress (Choice D) can exacerbate and contribute to ulcer formation but are not the primary cause.

2. A patient is being treated for shock after a motor vehicle accident. The provider orders 6% dextran 75 to be given intravenously. The nurse should expect which outcome as the result of this infusion?

• A. Decreased urine output
• B. Improved blood oxygenation
• C. Increased interstitial fluid
• D. Stabilization of heart rate and blood pressure

Correct answer: D

Rationale: 6% Dextran 75 is a high molecular-weight colloidal solution used to treat shock from burns or trauma. Colloids like 6% dextran 75 are plasma expanders that help increase blood volume, leading to improved heart rate and blood pressure stabilization. The infusion of plasma expanders does not typically decrease urine output. It primarily aims to stabilize circulation rather than affect blood oxygenation or increase interstitial fluid levels.

3. 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.

4. The client with chronic renal failure is being taught about dietary restrictions by the nurse. Which of the following food items should the client avoid?

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

Correct answer: B

Rationale: The correct answer is B: Bananas. Bananas are high in potassium, which should be limited in clients with chronic renal failure to prevent hyperkalemia. Apples (choice A), chicken (choice C), and rice (choice D) are not typically restricted in clients with chronic renal failure. Apples and rice are lower in potassium, while chicken is a good source of lean protein, which is usually encouraged in these clients to meet their protein needs without excess potassium intake.

5. An unlicensed assistive personnel (UAP) reports to the nurse that a client with a postoperative wound infection has a temperature of 103°F (39.4°C), blood pressure of 90/70, pulse of 124 beats/minute, and respirations of 28 breaths/minute. When assessing the client, findings include mottled skin appearance and confusion. Which action should the nurse take first?

• A. Transfer the client to the ICU.
• B. Initiate an infusion of intravenous (IV) fluids.
• C. Assess the client's core temperature.
• D. Obtain a wound specimen for culture.

Correct answer: B

Rationale: Initiating an infusion of IV fluids is the priority action to stabilize blood pressure in a client with signs of sepsis. Intravenous fluids help maintain perfusion to vital organs and prevent further deterioration. Option A is not the immediate priority as stabilizing the client's condition can be initiated in the current setting. Option C, assessing the client's core temperature, is important but not the most critical action at this time. Option D, obtaining a wound specimen for culture, is important for identifying the causative organism but is not the first priority in managing a client with signs of sepsis.

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