HESI LPN
PN Exit Exam 2023 Quizlet
1. Which neurotransmitter is most closely associated with mood regulation and is targeted by antidepressants?
- A. Serotonin
- B. Dopamine
- C. GABA
- D. Acetylcholine
Correct answer: A
Rationale: The correct answer is A: Serotonin. Serotonin plays a vital role in mood regulation, and its imbalance is often associated with depression. Many antidepressants function by boosting serotonin levels in the brain. Dopamine (Choice B) is more linked to reward and pleasure pathways in the brain, not primarily targeted for mood regulation. GABA (Choice C) is an inhibitory neurotransmitter that helps reduce neuronal excitability, not primarily associated with mood regulation. Acetylcholine (Choice D) is involved in muscle movement and cognitive functions, not the primary target of antidepressants for mood regulation.
2. The home health nurse suspects elder abuse after observing fresh lacerations on the arms and legs of an older adult male client who lives with his daughter. Which action is most important for the nurse to take?
- A. Document the lacerations in the client's record
- B. Report findings to the supervisor for referral to adult protective services
- C. Ask the daughter who has been taking care of the client on a daily basis
- D. Apply dry dressings after cleansing the wounds
Correct answer: B
Rationale: In cases where elder abuse is suspected, the most critical action for the nurse to take is to report the findings to the supervisor for referral to adult protective services. This step is essential to protect the client from further harm and ensure their safety. Documenting the lacerations, as suggested in choice A, is important but not as urgent as ensuring immediate intervention by reporting the abuse. Asking the daughter for information, as in choice C, may not be effective if she is the abuser. Applying dressings, as in choice D, is a lower priority compared to taking action to address the suspected abuse.
3. Which type of cell is responsible for producing antibodies in the immune system?
- A. B lymphocytes
- B. T lymphocytes
- C. Macrophages
- D. Neutrophils
Correct answer: A
Rationale: The correct answer is A: B lymphocytes. B lymphocytes (B cells) are a crucial part of the adaptive immune system. They produce antibodies, which are proteins that specifically target and neutralize pathogens such as bacteria and viruses. T lymphocytes (choice B) are involved in cell-mediated immunity rather than antibody production. Macrophages (choice C) are phagocytic cells that engulf and digest pathogens but do not produce antibodies. Neutrophils (choice D) are a type of white blood cell that primarily function in the innate immune response by phagocytosing pathogens.
4. The PN is caring for an older client who was informed about the diagnosis of terminal cancer two days ago. Which intervention would be most helpful for the client's spouse at this time?
- A. Consultation with the case manager and hospital chaplain
- B. Visiting after procedures are done to avoid seeing the client in pain
- C. Participating in the client's care within his/her capabilities and desires
- D. Information about palliative and hospice care services
Correct answer: D
Rationale: Providing information about palliative and hospice care services can help the spouse understand the options for managing the client's symptoms and improving the quality of life. This also provides support and guidance during a difficult time. Consulting with the case manager and hospital chaplain may be beneficial for emotional support but may not address the practical aspects of care. Visiting after procedures are done to avoid seeing the client in pain may not foster open communication and support. While participating in the client's care is important, providing information about palliative and hospice care services is the most helpful intervention in this scenario.
5. A nurse is reviewing the basal body temperature method with a couple. Which of the following statements would indicate that the teaching has been successful?
- A. I don't need to buy a special type of thermometer.
- B. I need to wait 5 minutes after smoking a cigarette before I take my temperature.
- C. I need to take my temperature before I get out of bed in the morning.
- D. I need to take my temperature at least once every day.
Correct answer: C
Rationale: The correct answer is C. Basal body temperature must be taken before getting out of bed in the morning to get an accurate reading, as even slight activity can raise body temperature and affect the results. Choice A is incorrect because a special type of thermometer is not required for basal body temperature measurement. Choice B is incorrect because smoking can affect body temperature, but the timing mentioned is not relevant to basal body temperature measurement. Choice D is incorrect because while it is essential to take the temperature consistently each day, the duration of temperature measurement is not specified, making this choice less specific compared to the correct answer.
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