HESI LPN
HESI PN Exit Exam 2024
1. A client who had a left hemicolectomy is experiencing a low-grade fever on post-operative day three. What is the nurse's best action?
- A. Encourage deep breathing and the use of the incentive spirometer.
- B. Administer antipyretic medication as prescribed.
- C. Notify the healthcare provider immediately.
- D. Increase the client’s fluid intake.
Correct answer: A
Rationale: A low-grade fever on post-operative day three can be a sign of atelectasis, a common post-operative complication. Encouraging deep breathing and the use of the incentive spirometer can help prevent and treat this condition. Atelectasis is often due to shallow breathing, so option A is the best initial action to promote lung expansion. Administering antipyretic medication (option B) may help reduce the fever but does not directly address the underlying cause. Notifying the healthcare provider immediately (option C) is not necessary at this point unless other concerning symptoms are present. Increasing the client’s fluid intake (option D) is important for overall recovery but is not the priority in this scenario.
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. The nurse is teaching a pregnant client how to distinguish prelabor contractions from true labor contractions. Which statement about prelabor contractions is accurate?
- A. They are irregular
- B. They are usually felt in the abdomen
- C. They start in the back and radiate to the abdomen
- D. They become more intense during walking
Correct answer: B
Rationale: The correct statement about prelabor contractions (Braxton Hicks contractions) is that they are usually felt in the abdomen. They are irregular in nature and do not intensify with movement. Choice A is incorrect because prelabor contractions are irregular, not regular. Choice C is incorrect as prelabor contractions do not start in the back and radiate to the abdomen. Choice D is incorrect as prelabor contractions do not become more intense during walking.
5. 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.
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