Nursing Elites

1. A nurse in a pediatric clinic is reviewing the laboratory test results of a school-age child. Which of the following findings should the nurse report to the provider?

• A. Hgb 12.5 g/dL.
• B. Platelets 250,000/mm³.
• C. Hct 40%.
• D. WBC 14,000/mm³.

Correct answer: D

Rationale: The correct answer is D. A WBC count of 14,000/mm³ is elevated, indicating a potential infection or inflammation, and should be reported to the provider for further evaluation and management. Choices A, B, and C are within normal ranges and do not require immediate reporting as they indicate normal hemoglobin, platelet count, and hematocrit levels for a school-age child.

2. What is the priority nursing intervention for a patient experiencing a myocardial infarction?

• A. Administer aspirin
• B. Administer nitroglycerin
• C. Administer morphine
• D. Prepare for surgery

Correct answer: A

Rationale: The correct answer is to administer aspirin. Administering aspirin is a priority nursing intervention for a patient experiencing a myocardial infarction because it helps reduce the risk of further clot formation. Aspirin is a common medication given during the early stages of a heart attack to prevent additional clotting. Administering nitroglycerin may also be indicated to help relieve chest pain by dilating blood vessels, but aspirin takes precedence due to its role in preventing clot progression. Administering morphine is not typically the first intervention in myocardial infarction as it can mask symptoms and delay other critical treatments. Surgery is not an immediate priority in the initial management of a myocardial infarction.

3. A nurse is caring for a client who is postoperative following a total knee arthroplasty. Which of the following actions should the nurse take?

• A. Place a pillow under the client's knees
• B. Keep the client's legs elevated
• C. Flex the client's knee every 2 hours
• D. Apply heat to the operative knee

Correct answer: B

Rationale: Keeping the client's legs elevated is the appropriate action to prevent venous thromboembolism following a total knee arthroplasty. Elevating the legs helps promote circulation and reduce the risk of blood clots. Placing a pillow under the client's knees may provide comfort but does not address the specific postoperative complication. Flexing the client's knee every 2 hours may be contraindicated as excessive movement can disrupt the surgical site. Applying heat to the operative knee is not recommended immediately postoperatively as it can increase swelling and discomfort.

4. A healthcare provider is reviewing laboratory results for a client who has diabetes mellitus. Which of the following tests is an indicator of long-term blood glucose control?

• A. Fasting blood glucose
• B. Glycosylated hemoglobin (HbA1c)
• C. Random blood glucose
• D. Postprandial blood glucose

Correct answer: B

Rationale: The correct answer is B, Glycosylated hemoglobin (HbA1c). HbA1c provides a measure of long-term blood glucose control over the past 2-3 months. This test reflects the average blood glucose levels during this period, making it a valuable tool in managing diabetes. Choices A, C, and D are not indicators of long-term blood glucose control. Fasting blood glucose measures the current glucose level after a period of not eating, random blood glucose provides a snapshot of the current glucose level, and postprandial blood glucose measures the glucose level after a meal.

5. A client has a central venous catheter. Which of the following actions should be taken to prevent an air embolism?

• A. Keep the catheter clamped when not in use
• B. Have the client perform the Valsalva maneuver while the catheter is removed
• C. Use a non-coring needle to access the catheter
• D. Flush the catheter with 0.9% sodium chloride every 24 hours

Correct answer: B

Rationale: The correct action to prevent an air embolism in a client with a central venous catheter is to have the client perform the Valsalva maneuver while the catheter is removed. This maneuver helps to close the airway and prevent air from entering the bloodstream. Keeping the catheter clamped at all times (Choice A) is not necessary and may lead to clot formation. Using a non-coring needle (Choice C) is important for accessing the catheter but does not specifically prevent air embolism. Flushing the catheter with 0.9% sodium chloride (Choice D) helps maintain patency but does not directly prevent air embolism.

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