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. When changing the client's dressing, which observation should the nurse report to the client's surgeon for a client recovering from an appendectomy for a ruptured appendix with a surgical wound healing by secondary intention?
- A. A halo of erythema on the surrounding skin
- B. Presence of serous drainage
- C. Edema around the wound
- D. Absence of granulation tissue
Correct answer: A
Rationale: A halo of erythema on the surrounding skin may indicate an infection or inflammation of the wound site, which is critical to report to the surgeon. Erythema, redness, and warmth are signs of inflammation that could potentially be a sign of an infected wound. Serous drainage is a common and expected finding in healing wounds, indicating a normal healing process. Edema around the wound might be expected due to the body's response to tissue injury. The absence of granulation tissue in a wound healing by secondary intention may not be an immediate concern as it forms during the later stages of wound healing.
3. When preparing an injection for opioid medication, a nurse draws 1mL from a 2mL vial. What should the nurse do next?
- A. Ask another nurse to observe medication wastage
- B. Document the amount of medication drawn on the MAR
- C. Dispose of the remaining medication in a sharps container
- D. Administer the entire vial of medication to avoid wastage
Correct answer: A
Rationale: When drawing medication from a vial, especially for controlled substances like opioids, any wastage must be witnessed by another healthcare professional to ensure accuracy, prevent diversion, and maintain safety standards. This process is crucial for proper documentation and accountability. Recording the amount drawn on the Medication Administration Record (MAR) is important for tracking administered doses and preventing errors. Disposing of the remaining medication in a sharps container is not recommended as it does not address proper wastage documentation. Administering the entire vial of medication just to avoid wastage is inappropriate and can lead to potential harm or overdose in the patient.
4. A client has C-diff infection. Which of the following actions should the nurse take?
- A. Give the client chlorhexidine gluconate for hand hygiene.
- B. Remove the protective gown first when exiting the client's room.
- C. Use alcohol-based hand rub when caring for the client.
- D. Initiate contact precautions when providing client care.
Correct answer: D
Rationale: The correct answer is to initiate contact precautions when providing client care. C-diff (Clostridium difficile) is highly contagious, and contact precautions are necessary to prevent its spread. Giving the client chlorhexidine gluconate for hand hygiene (Choice A) is not specific to managing C-diff. Removing the protective gown first when exiting the client's room (Choice B) may increase the risk of contaminating oneself and the environment. Using alcohol-based hand rub when caring for the client (Choice C) is not sufficient to prevent the transmission of C-diff, as soap and water are more effective against this particular pathogen.
5. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
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