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. A client with heart failure is being taught by a nurse on reducing daily sodium intake. Which factor is most crucial in determining the client’s ability to learn new dietary habits?

• A. The client's involvement in planning the change
• B. The cost of the dietary changes
• C. The availability of low-sodium foods
• D. The client’s previous dietary knowledge

Correct answer: D

Rationale: The client’s previous dietary knowledge is the most critical factor in determining the ability to learn new dietary habits. Understanding the client's existing dietary knowledge helps tailor the teaching to build upon what they already know. While client involvement in planning changes can increase adherence and motivation, the foundational knowledge is essential for effective learning. The cost of dietary changes and the availability of low-sodium foods are important considerations but not as crucial as the client's existing knowledge.

3. The patient has been in bed for several days and needs to be ambulated. Which action will the nurse take first?

• A. Maintain a narrow base of support.
• B. Dangle the patient at the bedside.
• C. Encourage isometric exercises.
• D. Suggest a high-calcium diet.

Correct answer: B

Rationale: The correct action the nurse should take first when a patient needs to be mobilized after being in bed for several days is to dangle the patient at the bedside. Dangling at the bedside is the initial step to assess the patient's tolerance to sitting up and moving. It helps prevent orthostatic hypotension and allows the nurse to evaluate the patient's response to upright positioning before attempting further ambulation. Maintaining a narrow base of support (Choice A) is related to assisting with ambulation but is not the first step. Encouraging isometric exercises (Choice C) and suggesting a high-calcium diet (Choice D) are not immediate actions needed to initiate mobilization in this scenario.

4. The client is learning about lifestyle changes to manage hypertension. Which statement by the client requires further teaching?

• A. I will reduce my salt intake.
• B. I will exercise for 30 minutes most days of the week.
• C. I will drink alcohol only on the weekends.
• D. I will monitor my blood pressure regularly.

Correct answer: C

Rationale: The correct answer is C. Clients with hypertension should ideally avoid or limit alcohol intake rather than just restricting it to weekends. Excessive alcohol consumption can raise blood pressure and interfere with the effectiveness of hypertension management. Choices A, B, and D are all positive statements that align with managing hypertension: reducing salt intake, regular exercise, and monitoring blood pressure are all beneficial lifestyle changes for individuals with hypertension. Therefore, the statement about drinking alcohol only on weekends requires further teaching to emphasize the importance of reducing alcohol consumption for better blood pressure control.

5. A client with diabetes mellitus is being taught by a nurse about mixing regular and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?

• A. I should roll the NPH vial between my hands before drawing it up.
• B. I should draw up the NPH insulin before the regular insulin.
• C. I should inject air into the vial of regular insulin first.
• D. I should wait 10 minutes after mixing the insulin to inject it.

Correct answer: A

Rationale: The correct answer is A. Rolling the NPH vial between the hands before drawing it up ensures proper mixing of the insulin. Choice B is incorrect because regular insulin should be drawn up first to avoid contamination. Choice C is incorrect as injecting air into the vial of regular insulin is not necessary. Choice D is incorrect as there is no need to wait 10 minutes after mixing the insulin before injecting it.

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