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 healthcare professional is reviewing a client’s medications. They include cimetidine and imipramine. Knowing that cimetidine decreases the metabolism of imipramine, the healthcare professional should identify that this combination is likely to result in which of the following effects?

• A. Decreased therapeutic effects of cimetidine
• B. Increased risk of imipramine toxicity
• C. Decreased risk of adverse effects of cimetidine
• D. Increased therapeutic effects of imipramine

Correct answer: B

Rationale: When cimetidine decreases the metabolism of imipramine, it leads to an increased concentration of imipramine in the body, which can result in imipramine toxicity. This increased risk of toxicity is the likely effect of this drug interaction. Choice A is incorrect because cimetidine's effect on imipramine metabolism does not impact the therapeutic effects of cimetidine. Choice C is incorrect because the interaction does not decrease the risk of adverse effects of cimetidine. Choice D is incorrect as the increased concentration of imipramine can lead to toxicity, not increased therapeutic effects.

3. The nurse is caring for a client who is receiving 24-hour total parenteral nutrition (TPN) via a central line at 54 ml/hr. When initially assessing the client, the nurse notes that the TPN solution has run out and the next TPN solution is not available. What immediate action should the nurse take?

• A. Infuse normal saline at a keep-vein-open rate.
• B. Discontinue the IV and flush the port with heparin.
• C. Infuse 10% dextrose and water at 54 ml/hr.
• D. Obtain a stat blood glucose level and notify the healthcare provider.

Correct answer: C

Rationale: Infusing 10% dextrose and water at 54 ml/hr is the correct action to prevent hypoglycemia until the next TPN solution becomes available. This solution will help maintain the client's glucose levels. Infusing normal saline at a keep-vein-open rate (Choice A) is not appropriate for maintaining glucose levels and would not address the nutritional needs provided by TPN. Discontinuing the IV and flushing the port with heparin (Choice B) is unnecessary and not indicated in this situation as the client still needs fluid and nutrition. Obtaining a stat blood glucose level and notifying the healthcare provider (Choice D) can be done later but is not the immediate action required when the TPN solution has run out.

4. A nurse is caring for a group of clients. Which of the following actions should the nurse take to prevent the spread of infection?

• A. Carry a client's soiled linens out of the room in a mesh linen bag
• B. Place a client who has tuberculosis in a room with negative-pressure airflow
• C. Provide disposable plates and utensils for a client who is HIV-positive
• D. Dispose of a client's blood-saturated dressing in a biohazard bag

Correct answer: B

Rationale: A client who has tuberculosis requires airborne precautions, including placing the client in a room with negative-pressure airflow to reduce the risk of infection transmission. Choices A, C, and D are incorrect. Carrying soiled linens in a mesh bag, providing disposable plates and utensils for an HIV-positive client, and disposing of blood-saturated dressing in a biohazard bag do not specifically address preventing the spread of tuberculosis, which requires airborne precautions.

5. A client with rheumatoid arthritis is prescribed prednisone. What information should the LPN/LVN include when teaching the client about this medication?

• A. Take the medication with food to minimize gastrointestinal side effects.
• B. Avoid exposure to sunlight while taking this medication.
• C. Do not discontinue the medication abruptly.
• D. Increase fluid intake while taking this medication.

Correct answer: C

Rationale: The correct answer is C: 'Do not discontinue the medication abruptly.' It is crucial for clients prescribed prednisone to not stop the medication suddenly to prevent adrenal insufficiency, as this medication suppresses the body's natural production of cortisol. Choice A is incorrect because prednisone should be taken with food to minimize gastrointestinal side effects, not necessarily to prevent stomach upset. Choice B is incorrect as there is no specific need to avoid sunlight while taking prednisone. Choice D is not directly related to prednisone use; while adequate fluid intake is generally beneficial, it is not a specific instruction for prednisone administration.

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