HESI LPN
HESI Fundamental Practice Exam
1. A charge nurse is teaching a newly licensed nurse about the care of a client who has methicillin-resistant Staphylococcus aureus (MRSA). Which of the following statements should the charge nurse identify as an indication that the newly licensed nurse understands the teaching?
- A. I should obtain a specimen for culture and sensitivity after the first dose of an antimicrobial.
- B. MRSA is usually resistant to vancomycin, so another antimicrobial will be prescribed.
- C. I will protect others from exposure when I transport the client outside the room.
- D. To decrease resistance, antimicrobial therapy is discontinued when the client is no longer febrile.
Correct answer: C
Rationale: The correct answer is C. Protecting others from exposure when transporting a client with MRSA is crucial in preventing the spread of infection. This statement demonstrates understanding of infection control measures. Stating that MRSA is usually resistant to vancomycin (choice B) is incorrect; vancomycin is often effective against MRSA. Obtaining a specimen for culture and sensitivity after the first dose of an antimicrobial (choice A) is unnecessary and not indicated. Discontinuing antimicrobial therapy when the client is no longer febrile (choice D) is incorrect because antimicrobial therapy should be completed as prescribed to prevent the development of resistant strains.
2. What is the most important action for the LPN/LVN to take to prevent infection in a client with an indwelling urinary catheter?
- A. Ensure the catheter tubing is free of kinks.
- B. Change the catheter every 72 hours.
- C. Clean the perineal area with an antiseptic solution daily.
- D. Irrigate the catheter with normal saline every shift.
Correct answer: A
Rationale: The most crucial action to prevent infection in a client with an indwelling urinary catheter is to ensure the catheter tubing is free of kinks. This step helps prevent obstruction in the tubing, maintaining proper urine flow and reducing the risk of infection. Changing the catheter every 72 hours is not recommended unless clinically indicated, as routine changes can increase the risk of introducing pathogens. Cleaning the perineal area with an antiseptic solution is essential for general hygiene but does not directly prevent catheter-related infections. Irrigating the catheter with normal saline every shift is not a standard practice and can introduce microorganisms into the urinary tract, increasing the risk of infection.
3. After inserting an NG tube for a client, which of the following assessment findings should the nurse expect to confirm correct tube placement?
- A. An x-ray shows the end of the tube above the pylorus.
- B. The tube is aspirated and contains clear gastric fluid.
- C. The tube is flushed with sterile water without resistance.
- D. The client does not cough or choke during tube insertion.
Correct answer: B
Rationale: Correct placement of an NG tube is confirmed by aspirating gastric fluid, which indicates that the tube is in the stomach. An x-ray can help visualize tube placement, but it alone does not confirm correct placement. Flushing the tube with sterile water without resistance indicates patency but not necessarily correct placement. The absence of coughing or choking does not confirm tube placement and is more related to the client's comfort during the procedure.
4. A client with herpes zoster asks the nurse about using complementary and alternative therapies for pain control. The nurse should inform the client that this condition is a contraindication for which of the following therapies?
- A. Biofeedback
- B. Aloe
- C. Feverfew
- D. Acupuncture
Correct answer: D
Rationale: Acupuncture is contraindicated for clients with herpes zoster due to the risk of introducing an open portal on the skin, which can increase the risk of infection. This therapy involves inserting needles into specific points on the body, potentially causing skin trauma and providing a route for the virus to spread. Biofeedback, aloe, and feverfew are not contraindicated for clients with herpes zoster and can be considered for pain management in this condition. Biofeedback involves using electronic devices to help individuals learn to control physiological processes, aloe is a plant known for its skin-soothing properties, and feverfew is an herb that has been used for pain relief.
5. The client is advised to take dexamethasone (Decadron) with food or milk. What is the physiological basis for this advice?
- A. Inhibits pepsin production
- B. Stimulates hydrochloric acid production
- C. Delays stomach emptying time
- D. Reduces hydrochloric acid production
Correct answer: B
Rationale: The correct answer is B: Stimulates hydrochloric acid production. Dexamethasone can stimulate the production of hydrochloric acid in the stomach, which may lead to irritation of the stomach lining. Taking dexamethasone with food or milk helps to neutralize or buffer the acid, reducing the risk of stomach irritation. Choice A is incorrect because dexamethasone does not inhibit pepsin production. Choice C is incorrect as dexamethasone does not slow stomach emptying time. Choice D is incorrect as dexamethasone does not reduce hydrochloric acid production.
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