Nursing Elites

1. A client with a diagnosis of myocardial infarction (MI) is being treated. Which laboratory value would be most concerning?

• A. Troponin level of 0.5 ng/mL
• B. Creatine kinase-MB (CK-MB) of 5.0 ng/mL
• C. Serum potassium of 4.5 mEq/L
• D. Blood glucose of 180 mg/dL

Correct answer: A

Rationale: A troponin level of 0.5 ng/mL is elevated, indicating myocardial damage, making it the most concerning finding in a client with a myocardial infarction (MI). Troponin is a highly specific marker for cardiac muscle damage, and elevated levels suggest ongoing injury to the heart muscle. While Creatine kinase-MB (CK-MB) is also a cardiac enzyme, troponin is more specific and sensitive for myocardial damage. Serum potassium and blood glucose levels are important parameters to monitor in MI patients, but in this scenario, the elevated troponin level takes precedence as it directly reflects cardiac injury.

2. The nurse is providing care for a client with a wound infection. Which type of precautions should the nurse implement?

• A. Airborne precautions
• B. Droplet precautions
• C. Contact precautions
• D. Standard precautions

Correct answer: C

Rationale: Contact precautions are necessary when caring for a client with a wound infection to prevent the spread of infection. Contact precautions involve practices such as wearing gloves and gowns, and ensuring proper hand hygiene. Airborne precautions are for diseases transmitted by small droplet nuclei that can remain suspended in the air, like tuberculosis. Droplet precautions are for diseases transmitted through respiratory droplets larger than 5 microns, such as influenza. Standard precautions are used for all clients to prevent the spread of infection and include practices like hand hygiene, use of personal protective equipment, and safe injection practices. In this case, since the client has a wound infection, the nurse should focus on implementing contact precautions to reduce the risk of spreading the infection to themselves or others.

3. When caring for a client with diarrhea due to shigellosis, what precautions should the nurse implement?

• A. Wear a gown when caring for the client.
• B. Wear gloves only.
• C. Use standard precautions only.
• D. Wear a mask and face shield.

Correct answer: A

Rationale: The correct answer is to wear a gown when caring for the client. Shigellosis is highly contagious, and contact precautions are essential to prevent the spread of infection. Wearing gloves alone may not provide adequate protection as the client's diarrhea can contain infectious pathogens that can easily spread. Standard precautions include hand hygiene, but specific precautions for shigellosis require wearing a gown to protect against contact with infectious material. Wearing a mask and face shield are not necessary for shigellosis, as the primary mode of transmission is through the fecal-oral route, and these precautions are not indicated for this type of transmission.

4. A nurse is preparing an infusion for a client who was hospitalized with deep-vein thrombosis. The orders read: 25,000 units of heparin in 250 mL of 0.9% sodium chloride to infuse at 800 units/hr. At what rate should the nurse set the infusion pump?

• A. 8 mL/hr
• B. 10 mL/hr
• C. 12 mL/hr
• D. 15 mL/hr

Correct answer: A

Rationale: To calculate the infusion rate, use the formula: (Desired units/hr / Total units) × Volume. In this case, it would be (800 units/hr / 25,000 units) × 250 mL = 8 mL/hr. Therefore, the nurse should set the infusion pump at 8 mL/hr. Choice B, 10 mL/hr, is incorrect because it does not match the calculated rate. Choices C and D, 12 mL/hr and 15 mL/hr respectively, are also incorrect as they do not align with the correct calculation based on the provided data.

5. A charge nurse is teaching a newly licensed nurse about the care of a client who has methicillin-resistant Staphylococcus aureus (MRSA). Which of the following statements should the charge nurse identify as an indication that the newly licensed nurse understands the teaching?

• A. I should obtain a specimen for culture and sensitivity after the first dose of an antimicrobial.
• B. MRSA is usually resistant to vancomycin, so another antimicrobial will be prescribed.
• C. I will protect others from exposure when I transport the client outside the room.
• D. To decrease resistance, antimicrobial therapy is discontinued when the client is no longer febrile.

Correct answer: C

Rationale: The correct answer is C. Protecting others from exposure when transporting a client with MRSA is crucial in preventing the spread of infection. This statement demonstrates understanding of infection control measures. Stating that MRSA is usually resistant to vancomycin (choice B) is incorrect; vancomycin is often effective against MRSA. Obtaining a specimen for culture and sensitivity after the first dose of an antimicrobial (choice A) is unnecessary and not indicated. Discontinuing antimicrobial therapy when the client is no longer febrile (choice D) is incorrect because antimicrobial therapy should be completed as prescribed to prevent the development of resistant strains.

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