HESI LPN
HESI PN Exit Exam
1. You have a patient who has just had a diagnostic arthroscopy. You are instructing him about what to do when he gets home. Which of the following would you NOT instruct him to do?
- A. Resume normal activities within 12 hours so as to help reduce the swelling
- B. Elevate the extremity for 24 – 48 hours
- C. Apply ice to the area involved intermittently
- D. Report severe pain to the physician immediately
Correct answer: A
Rationale: Patients should rest and avoid normal activities for a short period after arthroscopy to allow healing and prevent swelling, which could worsen with early activity. Elevation and icing are recommended post-procedure to reduce swelling and pain. Instructing the patient to resume normal activities within 12 hours could lead to increased swelling and delayed healing. Reporting severe pain is crucial as it could indicate a complication. Therefore, the correct instruction is not to resume normal activities immediately after arthroscopy.
2. Which task could the PN safely delegate to the UAP?
- A. Oral feeding of a two-year-old child after application of a hip spica cast
- B. Assessment of the placement and patency of a NG tube
- C. Participation in staff rounds to record notes regarding client goals
- D. Evaluation of a client's incisional pain following narcotic administration
Correct answer: A
Rationale: The correct answer is A because oral feeding of a child is a task that can be safely delegated to an unlicensed assistive personnel (UAP). This task involves providing basic care and does not require specialized nursing skills. Choices B, C, and D involve assessments, recording client goals, and evaluating pain, respectively, which all require specialized nursing knowledge, judgment, and skills. These tasks are not within the scope of practice for a UAP.
3. What is the most effective method to prevent medication errors during administration?
- A. Relying on memory for medication dosages
- B. Using a bar-code medication administration system
- C. Administering medications as quickly as possible to avoid delays
- D. Allowing another individual to administer medications
Correct answer: B
Rationale: Using a bar-code medication administration system is the best method to prevent medication errors during administration. This system verifies medication details electronically, ensuring that the correct medication is given to the right patient. Relying on memory for medication dosages (choice A) is not recommended as it can lead to errors. Administering medications quickly (choice C) may increase the risk of mistakes due to haste. Allowing another individual (choice D) to administer medications does not address the root cause of preventing errors during administration.
4. 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.
5. Which vitamin deficiency is most associated with night blindness?
- A. Vitamin A
- B. Vitamin B12
- C. Vitamin C
- D. Vitamin D
Correct answer: A
Rationale: The correct answer is Vitamin A. Vitamin A deficiency leads to night blindness because this vitamin is crucial for the formation of rhodopsin, a photopigment in the retina. Rhodopsin is essential for vision in low-light conditions. Vitamin B12 deficiency can lead to anemia and neurological issues but is not directly related to night blindness. Vitamin C deficiency can cause scurvy, affecting connective tissues, but not night vision. Vitamin D deficiency can lead to bone disorders but is not primarily associated with night blindness.
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