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. What is the most common sign of a localized infection?
- A. Fever
- B. Elevated white blood cell count
- C. Redness, warmth, and swelling at the site of infection
- D. Chills and shivering
Correct answer: C
Rationale: The correct answer is C: Redness, warmth, and swelling at the site of infection. These signs are typical indications of a localized infection, representing inflammation and the body's immune response to the pathogen. Fever (choice A) is a systemic response and not specific to a localized infection. Elevated white blood cell count (choice B) can be seen in both localized and systemic infections. Chills and shivering (choice D) are more related to the body's response to fever and not specifically indicative of a localized infection.
3. When preparing to administer a medication through a nasogastric (NG) tube, what is the first action the nurse should take?
- A. Check the placement of the NG tube
- B. Flush the tube with saline
- C. Position the client in a semi-Fowler's position
- D. Administer the medication slowly
Correct answer: A
Rationale: The correct first action when preparing to administer a medication through a nasogastric (NG) tube is to check the placement of the NG tube. This step is essential to ensure that the tube is correctly positioned in the stomach and not in the lungs, preventing potential complications. Flushing the tube with saline may be required, but it should follow the verification of tube placement. Positioning the client in a semi-Fowler's position is necessary for comfort during the procedure but is not the initial step. Administering the medication can only be done safely after confirming the correct placement of the NG tube.
4. A nurse is caring for a client with schizophrenia who continues to repeat the last words heard. Which nursing problem should the nurse document in the medical record?
- A. Altered thought processes
- B. Impaired social interaction
- C. Risk for self-directed violence
- D. Disturbed thought processes
Correct answer: D
Rationale: The correct answer is D: Disturbed thought processes. Echolalia, or the repetition of words, is indicative of disturbed thought processes, a common symptom in clients with schizophrenia. Choice A (Altered thought processes) is a more appropriate term than 'Disturbed thought processes' to describe the issue of echolalia. Choice B (Impaired social interaction) is not the best option in this scenario as echolalia is not primarily a social interaction issue. Choice C (Risk for self-directed violence) is not directly related to the symptom described in the question, which is echolalia, indicating a disturbance in thought processes.
5. For an older postoperative client with the nursing diagnosis 'impaired mobility related to fear of falling,' which desired outcome best directs the nurse's actions for the client?
- A. The client will ambulate with assistance every 4 hours
- B. The physical therapist will instruct the client in the use of a walker
- C. The client will use self-affirmation statements to decrease fear
- D. The nurse will place a gait belt on the client prior to ambulation
Correct answer: C
Rationale: Encouraging the client to use self-affirmation statements is the most appropriate desired outcome in this scenario. By utilizing self-affirmation statements, the client can address their fears directly and build confidence, which can ultimately lead to a reduction in fear of falling. While ambulating with assistance (choice A) is important, the focus here is on addressing the fear itself. Instructing the client in the use of a walker (choice B) and placing a gait belt on the client (choice D) are interventions that may be helpful but do not directly address the client's fear of falling.
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