HESI LPN
HESI Fundamentals Exam Test Bank
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 healthcare provider is caring for a client receiving total parenteral nutrition (TPN). Which laboratory value should be monitored closely to assess for complications?
- A. Serum sodium
- B. Serum calcium
- C. Blood urea nitrogen (BUN)
- D. Blood glucose
Correct answer: D
Rationale: The correct answer is D: Blood glucose. Monitoring blood glucose levels is crucial for clients receiving total parenteral nutrition (TPN) due to the high glucose content in TPN solutions. TPN delivers essential nutrients, including glucose, directly into the bloodstream. Clients on TPN are at risk of developing hyperglycemia due to the concentrated glucose infusion. Therefore, close monitoring of blood glucose levels is necessary to detect and prevent hyperglycemia-related complications such as osmotic diuresis, hyperosmolarity, and electrolyte imbalances. While serum sodium, serum calcium, and blood urea nitrogen (BUN) levels are important parameters in various clinical scenarios, they are not specifically associated with TPN administration. These values are not the primary indicators to assess for complications in clients receiving TPN.
3. The healthcare professional is caring for a client with a chest tube. Which observation requires immediate intervention?
- A. Constant bubbling in the suction control chamber
- B. Intermittent bubbling in the water seal chamber
- C. Drainage of 50 ml per hour
- D. Crepitus around the insertion site
Correct answer: D
Rationale: Crepitus around the chest tube insertion site may indicate subcutaneous emphysema, which requires immediate attention. The presence of crepitus suggests air leaking into the tissues, which could lead to respiratory compromise. Constant bubbling in the suction control chamber is expected and indicates proper functioning of the chest tube system. Intermittent bubbling in the water seal chamber is also normal, showing the system is intact. Drainage of 50 ml per hour is within the expected range for a chest tube.
4. 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.
5. What is the first step a healthcare professional should take when preparing to provide tracheostomy care?
- A. Perform hand hygiene
- B. Gather equipment
- C. Explain the procedure
- D. Assess the client
Correct answer: A
Rationale: Performing hand hygiene is the initial step a healthcare professional should take when preparing to provide tracheostomy care. This step is crucial to prevent the transmission of pathogens and reduce the risk of infection to the client. By cleansing the hands, the healthcare professional ensures patient safety. While gathering equipment, explaining the procedure, and assessing the client are essential components of tracheostomy care, they should occur after performing hand hygiene to maintain aseptic technique and minimize the risk of introducing harmful microorganisms to the client.
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