Nursing Elites

1. What is the most important action for preventing infection in a client with a central venous catheter?

• A. Changing the catheter dressing every 72 hours.
• B. Flushing the catheter with heparin solution daily.
• C. Ensuring the catheter is clamped when not in use.
• D. Maintaining sterile technique when handling the catheter.

Correct answer: D

Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. This action helps minimize the introduction of pathogens into the catheter site, reducing the risk of contamination and subsequent infection. Changing the catheter dressing every 72 hours, while important, does not directly address the prevention of infection at the insertion site. Flushing the catheter with heparin solution daily helps prevent occlusion but does not primarily focus on infection prevention. Ensuring the catheter is clamped when not in use is essential for preventing air embolism but does not directly relate to infection control.

2. The nurse is caring for a client with a urinary tract infection (UTI). Which finding should the LPN/LVN report to the healthcare provider immediately?

• A. Cloudy urine
• B. Burning sensation during urination
• C. Foul-smelling urine
• D. Blood in the urine

Correct answer: D

Rationale: The presence of blood in the urine in a client with a urinary tract infection (UTI) may indicate a more severe infection, such as pyelonephritis, or complications like kidney stones or bladder cancer. Therefore, this finding should be reported immediately for further evaluation and management. Cloudy urine, burning sensation during urination, and foul-smelling urine are common symptoms of UTI and may not necessarily signify an urgent need for immediate reporting compared to the presence of blood in the urine.

3. A client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?

• A. Blood glucose of 350 mg/dL
• B. Serum bicarbonate of 18 mEq/L
• C. Arterial pH of 7.20
• D. Serum potassium of 5.5 mEq/L

Correct answer: C

Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.

4. A client who is postoperative is being taught how to use a flow-oriented incentive spirometer. Which of the following instructions should be included by the nurse?

• A. Cough deeply after each use.
• B. Take a deep breath and hold for 10 seconds.
• C. Breathe in slowly and deeply to raise the ball or piston.
• D. Exhale forcefully before using the spirometer.

Correct answer: C

Rationale: The correct technique for using a flow-oriented incentive spirometer involves breathing in slowly and deeply to raise the ball or piston. This action helps to expand the lungs and improve lung function. Option A is incorrect as coughing deeply after each use is not part of using the spirometer. Option B is incorrect as holding the breath for 10 seconds is not the correct instruction for using the spirometer. Option D is incorrect as exhaling forcefully before using the spirometer is not the appropriate step in using this device.

5. A client is being discharged with a prescription for digoxin (Lanoxin). Which of the following instructions should the nurse include in the discharge teaching?

• A. Take your pulse daily before taking this medication.
• B. Take an extra dose if you miss a dose of this medication.
• C. Take this medication with food.
• D. Avoid eating foods high in potassium while taking this medication.

Correct answer: A

Rationale: The correct answer is A: 'Take your pulse daily before taking this medication.' It is essential for clients taking digoxin to monitor their pulse daily to detect bradycardia, a potential side effect. Choice B is incorrect because clients should never take an extra dose if a dose is missed; they should take the missed dose as soon as remembered unless it is close to the time for the next dose. Choice C is incorrect because digoxin is preferably taken with food to minimize gastrointestinal side effects. Choice D is incorrect because digoxin itself can cause low potassium levels, so avoiding potassium-rich foods is not necessary.

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