Nursing Elites

1. 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.

2. A nurse is planning care for a client who is 1 day postoperative following a total knee arthroplasty. Which of the following interventions should the nurse include?

• A. Keep the affected leg elevated as needed.
• B. Apply ice packs to the affected knee as prescribed.
• C. Encourage the client to ambulate as soon as possible.
• D. Perform range-of-motion exercises as instructed.

Correct answer: C

Rationale: Encouraging the client to ambulate as soon as possible is essential in preventing complications like deep vein thrombosis post knee arthroplasty. While keeping the affected leg elevated and applying ice packs can be beneficial in certain situations, early ambulation takes precedence in this case. Performing range-of-motion exercises hourly may not be necessary and could potentially cause more harm than good if not done correctly or excessively.

3. Which lab test is used to assess renal function?

• A. Check blood glucose levels
• B. Monitor serum creatinine
• C. Monitor BUN
• D. Check electrolyte levels

Correct answer: B

Rationale: The correct answer is B: Monitor serum creatinine. Serum creatinine is a key indicator of renal function as it reflects the glomerular filtration rate. An increase in serum creatinine levels indicates impaired kidney function. Checking blood glucose levels (choice A) is not specific to assessing renal function but is used to diagnose diabetes. Monitoring BUN (choice C) is important but not as specific as serum creatinine in assessing renal function. Checking electrolyte levels (choice D) is essential in assessing kidney function but is not as specific as monitoring serum creatinine.

4. A nurse is caring for a client who has a new prescription for warfarin. Which of the following laboratory values should the nurse monitor to determine the effectiveness of the medication?

• A. Hemoglobin
• B. Platelet count
• C. Prothrombin time (PT)
• D. International normalized ratio (INR)

Correct answer: D

Rationale: The correct answer is D, International normalized ratio (INR). INR is used to monitor the therapeutic effect of warfarin, an anticoagulant medication. Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors. Monitoring the INR helps assess how well the medication is working to prevent blood clots. Choices A, B, and C are not specific indicators for monitoring the effectiveness of warfarin. Hemoglobin levels primarily assess the oxygen-carrying capacity of red blood cells, platelet count evaluates the clotting ability of blood, and PT measures the time it takes for blood to clot. While these values are important for overall health assessment, they do not directly reflect the anticoagulant effects of warfarin.

5. How should a healthcare professional manage a patient with non-compliance to hypertension medication?

• A. Provide education on medication
• B. Refer the patient to a specialist
• C. Discontinue the medication
• D. Reassess the patient in 6 months

Correct answer: A

Rationale: Providing education on medication is crucial when managing a patient with non-compliance to hypertension medication. By educating the patient on the importance of adherence, potential side effects, and the impact of uncontrolled hypertension, healthcare professionals can help improve the patient's understanding and compliance. Referring the patient to a specialist (Choice B) may be necessary in some cases but should not be the first step. Discontinuing the medication (Choice C) without exploring reasons for non-compliance and providing education can worsen the patient's condition. Reassessing the patient in 6 months (Choice D) is important but should be accompanied by interventions to address non-compliance in the interim.

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