Nursing Elites

1. 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.

2. The healthcare provider is assessing the client's use of medications. Which of the following medications may cause a complication with the treatment plan of a client with diabetes?

• A. Aspirin
• B. Steroids
• C. Sulfonylureas
• D. Angiotensin-converting enzyme (ACE) inhibitors

Correct answer: B

Rationale: The correct answer is B: Steroids. Steroids can induce hyperglycemia, complicating diabetes management by raising blood sugar levels. Aspirin is not typically associated with causing complications in diabetic clients. Sulfonylureas are oral antidiabetic medications that can lower blood sugar levels and are commonly used in diabetes management, making them beneficial rather than harmful. Angiotensin-converting enzyme (ACE) inhibitors are medications often prescribed to manage hypertension in diabetic clients and do not typically interfere with diabetes treatment plans.

3. A nurse assesses clients on the medical-surgical unit. Which client is at greatest risk for bladder cancer?

• A. A 25-year-old female with a history of sexually transmitted diseases
• B. A 42-year-old male who has worked in a lumber yard for 10 years
• C. A 55-year-old female who has had numerous episodes of bacterial cystitis
• D. An 86-year-old male with a 50–pack-year cigarette smoking history

Correct answer: D

Rationale: The correct answer is D. The greatest risk factor for bladder cancer is a long history of tobacco use, which is reflected in an 86-year-old male with a 50–pack-year cigarette smoking history. Smoking is a well-established risk factor for developing bladder cancer. Choices A, B, and C are not directly linked to an increased risk of bladder cancer. While sexually transmitted diseases, certain occupational exposures, and recurrent urinary tract infections may pose other health risks, they are not specifically associated with an elevated risk of bladder cancer.

4. A client who has just undergone bronchoscopy was returned to the nursing unit 1 hour ago. With which assessment finding is the nurse most concerned?

• A. Oxygen saturation of 97%
• B. Equal breath sounds in both lungs
• C. Absence of cough and gag reflexes
• D. Respiratory rate of 20 breaths/min

Correct answer: C

Rationale: The correct answer is C. The absence of cough and gag reflexes is the most concerning finding for the nurse because it indicates a lack of protective airway reflexes, putting the client at risk of aspiration. Oxygen saturation of 97% is within the normal range and indicates adequate oxygenation. Equal breath sounds in both lungs are a positive finding, indicating no significant abnormalities. A respiratory rate of 20 breaths/min is also within the normal range and does not raise immediate concerns. Therefore, the absence of cough and gag reflexes poses the highest risk to the client's airway safety.

5. A client with a diagnosis of hypothermia is being admitted to the hospital by a nurse. Which of the following signs does the nurse anticipate that this client will exhibit?

• A. Increased heart rate and increased blood pressure
• B. Increased heart rate and decreased blood pressure
• C. Decreased heart rate and increased blood pressure
• D. Decreased heart rate and decreased blood pressure

Correct answer: D

Rationale: Hypothermia decreases the heart rate and blood pressure due to reduced metabolic needs of the body. With lower metabolic demands, the heart's workload decreases, leading to reductions in both heart rate and blood pressure. Choices A, B, and C are incorrect because hypothermia typically results in a decrease in heart rate and blood pressure, not an increase.

Similar Questions