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. A young adult is burned when wearing a shirt that was splashed with lighter fluid and caught on fire while attempting to light a charcoal grill. The client ripped off the shirt immediately, without unbuttoning the sleeves, which caused circumferential burns to both wrists. When the client is admitted, which intervention should the nurse implement first?

• A. Monitor pulse intensity.
• B. Evaluate extremity sensation.
• C. Assess range of motion.
• D. Place sterile bandage on both wrists.

Correct answer: A

Rationale: Monitoring pulse intensity is the priority to ensure circulation is not compromised due to circumferential burns.

3. While assessing a female client who is chronically fatigued and was recently diagnosed with adrenal insufficiency, the client tells the nurse that she is very nervous that her hospitalization will cause her to lose her job. Which intervention should the nurse implement first?

• A. Teach the client about the risk for infection.
• B. Offer support and care measures to reduce anxiety and stress.
• C. Encourage the client to rest quietly to reduce fatigue.
• D. Place a referral to social services to discuss financial options.

Correct answer: B

Rationale: In this scenario, the priority intervention for the nurse is to offer support and care measures to reduce anxiety and stress. Addressing the client's emotional distress is crucial as the stress can exacerbate adrenal insufficiency. While teaching the client about the risk for infection (Choice A) is important, addressing the immediate emotional needs takes precedence. Encouraging the client to rest quietly (Choice C) is beneficial but does not directly address the client's current distress about job loss. Referring the client to social services (Choice D) for financial options is important, but at this moment, addressing the client's anxiety is the priority to promote emotional well-being.

4. A nurse reviews the laboratory findings of a client with a urinary tract infection. The laboratory report notes a “shift to the left” in the client’s white blood cell count. Which action should the nurse take?

• A. Request that the laboratory perform a differential analysis on the white blood cells.
• B. Notify the provider and start an intravenous line for parenteral antibiotics.
• C. Collaborate with the unlicensed assistive personnel (UAP) to strain the client’s urine for renal calculi.
• D. Assess the client for a potential allergic reaction and anaphylactic shock.

Correct answer: B

Rationale: A “shift to the left” in a white blood cell count indicates an increase in band cells, which is typically associated with urosepsis. In this scenario, the nurse should notify the provider and initiate IV antibiotics as a left shift is often seen in severe infections like urosepsis. Requesting a differential analysis on white blood cells would not be the immediate action needed in response to a left shift. Collaborating to strain urine for renal calculi is unrelated to the situation of a left shift in white blood cells due to urosepsis. Assessing for allergic reactions and anaphylactic shock is not the priority as a left shift is not indicative of an allergic response; it is associated with an increase in band cells, not eosinophils.

5. Which of the following indicates a potential complication of diabetes mellitus?

• A. Inflamed and painful joints.
• B. Blood pressure of 160/100 mm Hg.
• C. Stooped posture.
• D. Hemoglobin of 9 g/dL (90 g/L).

Correct answer: B

Rationale: A blood pressure of 160/100 mm Hg indicates hypertension, which is a common complication of diabetes mellitus due to atherosclerotic changes. Hypertension is a significant risk factor for cardiovascular diseases, which are prevalent in individuals with diabetes. Inflamed and painful joints (Choice A) are not directly related to diabetes complications but may be seen in conditions like arthritis. Stooped posture (Choice C) is more indicative of musculoskeletal issues like osteoporosis, not necessarily a typical complication of diabetes. Hemoglobin level of 9 g/dL (90 g/L) (Choice D) could signify anemia, which can occur in diabetes but is not a primary complication often associated with the disease.

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