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. A client is 48 hours post-op from a bowel resection and has not had a bowel movement. The client is complaining of abdominal pain and bloating. What is the nurse’s best action?
- A. Administer a prescribed laxative.
- B. Encourage the client to increase fluid intake.
- C. Auscultate bowel sounds.
- D. Notify the healthcare provider.
Correct answer: C
Rationale: Auscultating bowel sounds is the best initial action in this situation. It helps the nurse assess bowel function before considering interventions like administering a laxative. Abdominal pain and bloating could be indicative of bowel motility issues, and auscultation can provide crucial information. Encouraging increased fluid intake can be beneficial in promoting bowel movement, but assessing bowel sounds is more immediate to evaluate the current status. Notifying the healthcare provider should be reserved for situations where immediate intervention is needed or if the condition worsens after assessment.
3. Which condition is most commonly associated with a "bull's eye" rash?
- A. Lyme disease
- B. Rocky Mountain spotted fever
- C. Syphilis
- D. Toxoplasmosis
Correct answer: A
Rationale: The correct answer is A: Lyme disease. The "bull's eye" rash, or erythema migrans, is a hallmark of early Lyme disease, caused by the bacterium Borrelia burgdorferi. Choice B, Rocky Mountain spotted fever, presents with a different type of rash. Choice C, Syphilis, typically presents with a painless ulcer and rash but not a "bull's eye" rash. Choice D, Toxoplasmosis, does not typically present with a "bull's eye" rash.
4. What is a priority when providing care for a patient with a newly inserted tracheostomy?
- A. Keeping the tracheostomy tube clean and dry
- B. Providing regular oral hygiene
- C. Monitoring for signs of infection and ensuring a patent airway
- D. Encouraging the patient to cough and deep breathe
Correct answer: C
Rationale: When caring for a patient with a newly inserted tracheostomy, the priority is to monitor for signs of infection and ensure a patent airway. This is crucial to prevent complications such as airway obstruction or infection. While keeping the tracheostomy tube clean and dry is important for overall care, it is not the highest priority when compared to ensuring a patent airway. Providing regular oral hygiene is essential for the patient's comfort but takes a secondary role to maintaining airway patency. Encouraging the patient to cough and deep breathe may be beneficial but is not as critical as monitoring for infection and keeping the airway clear.
5. The nurse observes a UAP performing oral hygiene on an unconscious client who is lying in a flat side-lying position with an emesis basin on a towel under the chin. Which action should the nurse take?
- A. Stop the procedure and tell the UAP to place the client in a Fowler's position
- B. Praise the UAP for doing the oral hygiene but encourage family participation
- C. Tell the UAP to continue because the unconscious client is positioned safely
- D. Enroll the UAP in a hospital education class on conducting safe client care
Correct answer: C
Rationale: The correct answer is to tell the UAP to continue because the unconscious client is positioned safely for oral care. Placing an unconscious client in a side-lying position helps prevent aspiration, and having an emesis basin under the chin is appropriate to catch any fluids. Therefore, the nurse should acknowledge that the UAP is performing the procedure correctly. Choices A, B, and D are incorrect. Placing the client in a Fowler's position is not necessary for this procedure as the client is already positioned safely. Praise and encouragement for family participation are important aspects but not the immediate action needed in this scenario. Enrolling the UAP in a hospital education class is not warranted as the current procedure is being performed correctly.
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