which neurotransmitter is most closely associated with mood regulation and is targeted by antidepressants
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Nursing Elites

HESI LPN

PN Exit Exam 2023 Quizlet

1. Which neurotransmitter is most closely associated with mood regulation and is targeted by antidepressants?

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 adult client is undergoing weekly external radiation treatments for breast cancer. Upon arrival at the outpatient clinic for a scheduled treatment, the client reports increasing fatigue to the nurse who is taking the client's vital signs. What action should the nurse implement?

Correct answer: D

Rationale: Fatigue is a common side effect of radiation therapy. In this scenario, the appropriate action for the nurse to take is to reinforce the importance of rest and adequate sleep. It is crucial to address the client's increasing fatigue by promoting self-care strategies such as additional rest periods and ensuring plenty of sleep. Rescheduling the treatment is not necessary for fatigue, and vital sign monitoring every 30 minutes may not directly address the client's reported symptom. Notifying the healthcare provider or charge nurse immediately is not the first-line intervention for increasing fatigue, as this symptom can be managed through education and self-care recommendations.

3. A client who had a right total shoulder replacement is being prepared for discharge. What should the nurse emphasize to the client to prevent complications?

Correct answer: A

Rationale: The correct answer is to avoid lifting objects with the right arm until cleared by the surgeon. After a total shoulder replacement, it is essential to protect the new joint to prevent dislocation or injury. Lifting heavy objects prematurely can lead to complications. While performing shoulder exercises is important for strength, they should be done as per the healthcare provider's instructions to avoid strain on the new joint. Using a sling at all times, as in choice C, is not necessary once the client has regained enough strength and mobility. Applying heat, as in choice D, may not be recommended post-surgery; cold therapy is often preferred to reduce swelling and pain.

4. Which of the following is an appropriate intervention for a patient experiencing a hypertensive crisis?

Correct answer: B

Rationale: Administering a beta-blocker intravenously is the correct intervention for a patient experiencing a hypertensive crisis. Beta-blockers help quickly reduce blood pressure and prevent complications such as stroke or heart attack. Placing the patient in a supine position can worsen the condition by reducing venous return and increasing the workload of the heart. Encouraging the patient to drink fluids is not recommended as it can exacerbate hypertension by increasing fluid volume. Applying a cold compress to the forehead does not address the underlying cause of the hypertensive crisis and is unlikely to provide significant benefit.

5. The PN notes that an older female client has developed a nonproductive cough and seems more confused than the previous day. Vital signs are temperature 99.8°F, pulse 94, respirations 22, and B/P 108/54. Which intervention is most important for the PN to implement?

Correct answer: A

Rationale: The change in the client’s condition, especially confusion and a new cough, may indicate the onset of an infection such as pneumonia, which requires immediate attention. Reporting to the charge nurse ensures prompt evaluation and intervention. Monitoring the client's temperature hourly (Choice B) could be important but not the most critical at this point. Offering the client fluids frequently (Choice C) and providing care to moisten oral mucosa (Choice D) are not the priority interventions when facing potential signs of infection and confusion in the client.

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