HESI LPN
HESI PN Exit Exam 2024 Quizlet
1. 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.
2. According to the principle of asepsis, which situation should the PN consider to be sterile?
- A. A one-inch border around the edges of a sterile field set up in the operating room
- B. A sterile glove that the PN thinks might have touched hair
- C. A wrapped, unopened sterile 4x4 gauze pad placed on a damp table top
- D. An open sterile Foley catheter kit set up on a table at the PN's waist level
Correct answer: A
Rationale: According to the principle of asepsis, the one-inch border around the edges of a sterile field set up in the operating room is considered non-sterile, while the central area remains sterile. Therefore, the PN should consider the situation described in choice A to be sterile. Choice B is incorrect because a glove that may have touched hair is contaminated. Choice C is incorrect as a sterile item placed on a damp surface is considered contaminated. Choice D is incorrect as a sterile kit set up at the PN's waist level is prone to contamination.
3. An 8-year-old child is placed in 90-90 traction for a fractured femur. The nurse notices that the weights are touching the foot of the bed. What action should the nurse take?
- A. No bowel movement for two days
- B. Mother helps reposition the child
- C. Ensure weights are not touching the foot of the bed
- D. Child wiggles toes freely when tickled
Correct answer: C
Rationale: The nurse should ensure that the weights in traction are not touching the foot of the bed. This is crucial to maintain proper alignment and effectiveness of the traction. When the weights touch the bed, it can compromise the traction's function and delay healing. Choices A, B, and D are incorrect as they do not address the issue of ensuring that the weights are not touching the bed, which is essential for the traction to work effectively.
4. 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.
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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