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. An older male client with Alzheimer's disease is admitted to an extended care facility. Which intervention should the PN include in the client's nursing care plan?
- A. Plan to have the same nursing staff provide care for the client whenever possible
- B. Describe the activities available to residents and encourage him to choose the ones he prefers
- C. Encourage the client to remain on the unit for three weeks until he is oriented to his new surroundings
- D. Introduce the client to the nursing staff and other residents as soon as possible
Correct answer: A
Rationale: The correct intervention for a client with Alzheimer's disease in an extended care facility is to plan to have the same nursing staff provide care whenever possible. Consistency in caregivers helps reduce confusion and anxiety in clients with Alzheimer’s disease, promoting a stable and supportive environment for the client. Choice B is incorrect as it focuses on activities rather than the consistency of caregivers. Choice C is incorrect as it suggests isolating the client, which can lead to increased confusion and distress. Choice D is incorrect as introducing the client to new people immediately can be overwhelming and may exacerbate their symptoms.
3. A client has a prescription for a transcutaneous electrical nerve stimulator (TENS) unit for pain management during the postoperative period following a lumbar laminectomy. Which information should the PN reinforce about the action of the adjuvant pain modality?
- A. The discharge of electricity will distract the client's focus from the pain.
- B. An infusion of medication into the spinal canal will block pain perception.
- C. Pain perception in the cerebral cortex is dulled by the unit's discharge of an electrical stimulus.
- D. A mild electrical stimulus on the skin surface closes the gates of nerve conduction for severe pain.
Correct answer: D
Rationale: The TENS unit works by providing a mild electrical stimulus to the skin, which helps to 'close the gate' on pain signals, reducing the perception of pain. Choice A is incorrect because distraction is not the primary mechanism of action for TENS. Choice B is incorrect as it describes a different method of pain management involving medication infusion into the spinal canal. Choice C is incorrect as it inaccurately describes the location of pain perception modulation by the TENS unit.
4. When a woman in early pregnancy is leaving the clinic, she blushes and asks the nurse if it is true that sex during pregnancy is bad for the baby. What is the best response for the nurse to give?
- A. The baby is protected by the sac. Sex is perfectly alright.
- B. It is unlikely to harm the baby. What you do with your personal life is your concern.
- C. Intercourse during pregnancy is usually alright, but you need to ask the doctor if it is acceptable for you.
- D. In a normal pregnancy, intercourse will not harm the baby. However, many women experience a change in desire. How are you feeling?
Correct answer: D
Rationale: Choice D is the best response as it reassures the patient that intercourse in a normal pregnancy will not harm the baby. It also shows empathy by acknowledging that many women experience changes in sexual desire during pregnancy. This response validates the patient's concerns and opens up a dialogue about her feelings. Choice A is incorrect as it lacks information about changes in sexual desire and oversimplifies the situation. Choice B is dismissive of the patient's concerns and does not provide adequate information. Choice C is not the best response as it suggests asking the doctor without offering immediate reassurance or addressing the patient's worries.
5. 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.
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