HESI LPN
PN Exit Exam 2023 Quizlet
1. Which electrolyte imbalance is most likely to cause cardiac arrhythmias?
- A. Hyperkalemia
- B. Hypocalcemia
- C. Hypernatremia
- D. Hypokalemia
Correct answer: A
Rationale: Hyperkalemia is the correct answer as it can lead to dangerous cardiac arrhythmias due to its effects on the electrical conduction of the heart. High levels of potassium can disrupt the normal electrical activity of the heart, potentially leading to life-threatening arrhythmias. Hypocalcemia (choice B) is not the most likely cause of cardiac arrhythmias compared to hyperkalemia. Hypernatremia (choice C), referring to high sodium levels, is not directly associated with causing cardiac arrhythmias. While hypokalemia (choice D), low potassium levels, can also lead to cardiac arrhythmias, hyperkalemia is the more likely culprit in causing severe disturbances in heart rhythm.
2. What is the correct order of steps in the nursing process?
- A. Assessment, Diagnosis, Planning, Implementation, Evaluation
- B. Planning, Implementation, Evaluation, Diagnosis, Assessment
- C. Diagnosis, Assessment, Planning, Implementation, Evaluation
- D. Implementation, Planning, Evaluation, Diagnosis, Assessment
Correct answer: A
Rationale: The correct order in the nursing process is Assessment, Diagnosis, Planning, Implementation, and Evaluation. Assessment involves gathering information about the patient, Diagnosis is identifying the problem, Planning involves setting goals and outcomes, Implementation is carrying out the plan, and Evaluation is assessing the outcomes. Choices B, C, and D have the steps in the incorrect order, not following the standard nursing process framework. Therefore, the correct answer is option A.
3. What is the best thing to say to a patient scheduled for cataract surgery who is concerned that the physician works on the correct eye?
- A. You are wearing an ID bracelet that will let the medical team know which eye to work on.
- B. When you are taken to the surgery area, the medical staff will confirm which eye needs the surgery.
- C. The surgeon will mark the correct eye before the cataract surgery based on your medical records.
- D. You will wear an ID bracelet, and the nurse will verify the eye scheduled for surgery by comparing it with your records and marking it with a permanent marker.
Correct answer: D
Rationale: The best response reassures the patient by explaining the process of verifying and marking the correct eye, a safety measure to prevent wrong-site surgery, directly addressing the patient’s concern. Choice A is close but implies the ID bracelet alone determines the correct eye, missing the verification process. Choice B talks about confirmation but lacks details about marking the correct eye. Choice C mentions the surgeon's record but does not specify the direct verification and marking process, unlike Choice D.
4. 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.
5. The nurse enters a male client's room to administer routine morning medications, and the client is on the phone. Which action is best for the nurse to take?
- A. Ask another nurse to return with the medication when the client has hung up the phone
- B. Wait for the client to excuse himself from the telephone conversation, and observe the client taking the medication
- C. Return the medication to the client's drawer on the cart and document that the client refused the dose
- D. Leave the medication with the client and let him take it when he finishes the conversation
Correct answer: B
Rationale: The best action for the nurse to take in this situation is to wait for the client to excuse himself from the telephone conversation and then observe the client taking the medication. This approach ensures that the client takes the medication as prescribed, promoting compliance and safety. Choice A is not ideal as it involves unnecessary delegation and may lead to confusion. Choice C is incorrect because assuming refusal without direct communication can compromise patient care. Choice D is not recommended as leaving the medication with the client unsupervised may result in non-compliance or potential errors.
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