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. Which of the following dietary modifications should be recommended for a patient with chronic kidney disease (CKD)?

Correct answer: C

Rationale: A low sodium, low potassium diet is often recommended for patients with CKD to manage fluid balance and prevent electrolyte imbalances that the kidneys can no longer regulate effectively. High protein diets, as mentioned in choice A, can put extra strain on the kidneys, making it an incorrect choice. Choice B, which suggests a low protein, high potassium diet, is also incorrect because high potassium levels can be harmful to individuals with CKD. Choice D, advocating for a high calcium, low phosphorus diet, is not the typical dietary recommendation for CKD patients, even though managing calcium and phosphorus levels is important in their diet.

3. The practical nurse is caring for a client who had a total laryngectomy, left radical neck dissection, and tracheostomy. The client is receiving nasogastric tube feedings via an enteral pump. Today the rate of feeding is increased from 50 ml/hr to 75 ml/hr. What parameter should the PN use to evaluate the client's tolerance to the rate of the feeding?

Correct answer: B

Rationale: Monitoring gastric residual volumes helps to assess how well the client is tolerating the increased feeding rate. High residuals may indicate delayed gastric emptying, which could lead to complications like aspiration. This helps in adjusting the feeding plan as necessary. Daily weight (Choice A) is not the most appropriate parameter to evaluate tolerance to feeding rate changes. Bowel sounds (Choice C) and urinary/stool output (Choice D) are important assessments but do not directly indicate tolerance to enteral feeding rate changes.

4. A female Native American client who is receiving chemotherapy places a native artifact, an Indian medicine wheel, in her hospital room. The HCP removes the medicine wheel and tells the client, 'This type of thing does not belong in the hospital.' Which intervention should the PN implement?

Correct answer: B

Rationale: Acting as the client's advocate is the most appropriate intervention in this situation. Removing a culturally significant artifact without considering the client's beliefs and emotional needs can be distressing. By advocating for the client, the PN can ensure that the client's cultural practices are respected, which is crucial for her emotional and spiritual well-being during treatment. Choice A is incorrect because while chemotherapy adherence is important, it is not the most immediate concern in this scenario. The client's cultural needs and well-being take precedence. Choice C is incorrect because consulting with a Native American healer might not be necessary at this point and could delay addressing the immediate issue of advocating for the client's rights. Choice D is incorrect because simply reporting the client's feelings of culture shock to the HCP does not actively address the situation or advocate for the client's rights and cultural needs.

5. The PN identifies an electrolyte imbalance, exhibited by changes in mental status, and an elevated blood pressure for a client with progressive heart disease. Which intervention should the PN implement first?

Correct answer: B

Rationale: Evaluating for muscle cramping, which is a sign of electrolyte imbalance, is crucial in this scenario. Electrolyte imbalances, especially involving potassium or calcium, can lead to serious complications such as arrhythmias or seizures, which need immediate attention. Recording eating patterns (choice A) may be important for overall assessment but is not the priority in this situation. Documenting abdominal girth (choice C) and elevating legs on pillows (choice D) are not directly related to addressing the immediate concern of electrolyte imbalance and its potential complications.

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