HESI LPN
Adult Health 1 Final Exam
1. Which intervention is most effective in preventing the spread of infection in a healthcare setting?
- A. Wearing gloves
- B. Using hand sanitizer
- C. Practicing hand hygiene
- D. Disinfecting surfaces
Correct answer: C
Rationale: Practicing hand hygiene is the most effective measure to prevent the spread of infection in healthcare settings. While wearing gloves, using hand sanitizer, and disinfecting surfaces are important infection control measures, they are not as effective as proper hand hygiene. Hand hygiene, including handwashing with soap and water or using alcohol-based hand sanitizers, is crucial in preventing the transmission of pathogens from one person to another, making it the best choice among the options provided. Wearing gloves primarily protects the wearer and is not a substitute for hand hygiene. Using hand sanitizer is helpful but may not be as effective as proper handwashing. Disinfecting surfaces is important but does not address the direct transmission of pathogens through hand contact, which hand hygiene effectively prevents.
2. A client with a chronic illness expresses frustration over their condition. What is the nurse's best response to support the client?
- A. Encourage joining a support group for emotional support
- B. Discuss the possibility of a cure in the future
- C. Suggest focusing on positive aspects of their life
- D. Validate their feelings and listen to their concerns
Correct answer: D
Rationale: The best response for the nurse to support a client expressing frustration over their chronic illness is to validate their feelings and listen to their concerns (Option D). This approach helps acknowledge the client's emotions, demonstrates empathy, and establishes a therapeutic relationship. By validating the client's feelings and actively listening to their concerns, the nurse offers a supportive environment for the client to express their frustrations. Choices A, B, and C are not the best responses in this situation. While joining a support group, discussing a cure, or focusing on positive aspects can be beneficial interventions, the immediate priority is to validate the client's feelings and provide a space for them to express their frustrations.
3. A client with a history of chronic obstructive pulmonary disease (COPD) is prescribed oxygen therapy at 2 liters per minute via nasal cannula. What is the most important instruction the nurse should provide?
- A. Increase the oxygen flow rate if shortness of breath occurs
- B. Use oxygen only when experiencing shortness of breath
- C. Do not adjust the oxygen flow rate without consulting a healthcare provider
- D. Use a humidifier with the oxygen to prevent dry mucous membranes
Correct answer: C
Rationale: The most important instruction the nurse should provide to a client with COPD prescribed oxygen therapy is not to adjust the oxygen flow rate without consulting a healthcare provider. This is crucial because too much oxygen can suppress the client's respiratory drive, leading to further complications. Choice A is incorrect because increasing the oxygen flow rate without medical advice can be harmful. Choice B is incorrect as oxygen therapy should be used as prescribed, not just when symptoms occur. Choice D is incorrect as the priority is to ensure the correct oxygen flow rate rather than using a humidifier.
4. When reconstituted, how many milligrams are in each milliliter of solution?
- A. 300 mg/mL
- B. 350 mg/mL
- C. 450 mg/mL
- D. 400 mg/mL
Correct answer: D
Rationale: After reconstitution, the concentration of the cefazolin solution is 400 mg/mL. This calculation is derived by dividing the total milligrams in the vial (1000 mg) by the total volume after reconstitution (2.5 mL). Therefore, each milliliter of the solution contains 400 mg of cefazolin. Choices A, B, and C are incorrect as they do not match the correct calculation based on the information provided.
5. The nurse observes that a post-operative client's surgical wound has reddened edges and is oozing. What is the appropriate nursing action?
- A. Apply an antibiotic ointment
- B. Clean the wound with sterile saline
- C. Cover the wound with a sterile dressing
- D. Notify the surgeon immediately
Correct answer: D
Rationale: The correct action when a post-operative client's surgical wound has reddened edges and is oozing is to notify the surgeon immediately. Reddened, oozing wound edges can indicate an infection that requires prompt evaluation and intervention by the surgical team. Applying an antibiotic ointment (Choice A) without proper assessment and guidance can be inappropriate. Cleaning the wound with sterile saline (Choice B) and covering it with a sterile dressing (Choice C) may not address the potential infection adequately, and the client may require more specialized care that the surgeon can provide.
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