which neurotransmitter is most closely associated with mood regulation and is targeted by antidepressants
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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. A homeless male client with a history of alcohol abuse had a CVA 10 years ago that resulted in left hemiparesis. Today he is brought to the clinic reporting pain in his left leg. He is afebrile, has 4+ pitting edema in the lower left leg, and has minimal swelling of the right leg. Which action should the PN implement first?

Correct answer: B

Rationale: Inspecting the legs for infection or trauma is the priority to assess the cause of the pain and edema, which could indicate deep vein thrombosis or cellulitis. Checking for signs of infection or trauma is crucial in this scenario to rule out potentially serious conditions. Obtaining a blood alcohol test, completing a mental status exam, or inquiring about dietary salt intake can be considered after addressing the immediate concern of identifying any infection or trauma in the leg.

3. While caring for a client with an AV fistula in the left forearm, the PN observed a palpable buzzing sensation over the fistula. What action should the PN take?

Correct answer: C

Rationale: A palpable buzzing sensation, known as a thrill, over an AV fistula indicates proper functioning. The correct action for the PN is to document that the fistula is intact. Choice A is incorrect because there is no need to loosen the fistula dressing when the thrill is felt. Choice B is incorrect as a bounding pulse is not related to the observed buzzing sensation. Choice D is incorrect because applying pressure is unnecessary when a thrill is present, indicating proper AV fistula function.

4. A client is post-operative day two from a total hip arthroplasty. The nurse notices the surgical wound is red and warm to the touch. What is the most appropriate action?

Correct answer: D

Rationale: The correct action when a nurse notices redness and warmth at the surgical wound post total hip arthroplasty is to notify the healthcare provider. These signs may indicate an infection, and prompt evaluation by the healthcare provider is crucial to initiate appropriate treatment. Applying an ice pack (Choice A) may not address the underlying issue of a potential infection. Monitoring the client's temperature (Choice B) is important but not the priority when signs of infection are present. Documenting the findings and continuing to monitor (Choice C) is necessary but should be accompanied by notifying the healthcare provider for further assessment and intervention.

5. Which of the following components of nutrition has a primary function of helping with tissue growth and repair?

Correct answer: C

Rationale: Protein is the correct answer as it is essential for tissue growth and repair. Proteins are composed of amino acids, the building blocks of body tissues. While vitamins D and E have important roles in the body, they are not primarily responsible for tissue growth and repair. Fats are crucial for various bodily functions, like providing energy, but they are not the primary component involved in tissue growth and repair.

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