HESI LPN
HESI Fundamental Practice Exam
1. The healthcare professional is preparing to administer potassium chloride intravenously to a client with hypokalemia. Which action is most important?
- A. Monitor the client's respiratory rate
- B. Check the client's urine output
- C. Administer the potassium chloride as a rapid IV push
- D. Dilute the potassium chloride in an appropriate IV solution
Correct answer: D
Rationale: The correct answer is to dilute the potassium chloride in an appropriate IV solution. Potassium chloride should never be administered as a rapid IV push as it can lead to severe complications, including cardiac arrhythmias. Diluting the medication and administering it slowly helps reduce the risk of adverse effects. Monitoring the client's respiratory rate (Choice A) and checking urine output (Choice B) are important aspects of patient assessment but not the most crucial when administering potassium chloride. Administering potassium chloride as a rapid IV push (Choice C) is dangerous and can result in serious harm to the client.
2. A healthcare professional is admitting a client who has tuberculosis. Which of the following types of transmission precautions should the healthcare professional plan to initiate?
- A. Contact
- B. Droplet
- C. Airborne
- D. Protective environment
Correct answer: C
Rationale: Tuberculosis is transmitted through airborne particles, so airborne precautions are necessary to prevent the spread of the disease. Airborne precautions (Choice C) involve measures such as negative pressure rooms and N95 respirators to prevent the transmission of infectious agents that remain infectious over long distances when suspended in the air. Contact precautions (Choice A) are used for diseases that spread through direct contact with the patient or their environment. Droplet precautions (Choice B) are for diseases transmitted through respiratory droplets, typically over short distances. Protective environment (Choice D) is used for clients who are immunocompromised to protect them from environmental pathogens, not for diseases like tuberculosis that spread through the air.
3. A home health nurse is teaching a new caregiver how to care for a client who has had a tracheostomy for 1 year. Which of the following instructions should the nurse include?
- A. Use tracheostomy covers when going outdoors.
- B. Maintain sterile technique when performing tracheostomy care.
- C. Do not remove the outer cannula for routine cleaning.
- D. Clean around the stoma with normal saline.
Correct answer: A
Rationale: The correct answer is to use tracheostomy covers when going outdoors. This instruction is important as it helps protect the airway from dust and other particles, reducing the risk of infection or irritation. Choice B is incorrect because maintaining sterile technique is crucial during tracheostomy care to prevent infections, but it is not the most pertinent instruction in this scenario. Choice C is incorrect as removing the outer cannula is not a routine cleaning procedure and should only be done by healthcare professionals when necessary. Choice D is incorrect because cleaning around the stoma with normal saline is not recommended as it can cause irritation to the skin and stoma site.
4. The nurse is caring for a client with a nasogastric (NG) tube. Which action should the nurse take to maintain patency of the tube?
- A. Flush the tube with 30 ml of water before and after medication administration.
- B. Administer the medication with food to prevent nausea.
- C. Verify tube placement by aspirating stomach contents.
- D. Dilute the medication with normal saline before administration.
Correct answer: A
Rationale: To maintain the patency of a nasogastric (NG) tube, it is essential to flush the tube with 30 ml of water before and after medication administration. This action helps ensure that the tube remains open and free from blockages. Flushing the tube prevents any medication residue from causing blockages, maintaining its patency. Choice B is incorrect because administering medication with food does not relate to maintaining tube patency. Choice C is incorrect as verifying tube placement by aspirating stomach contents is related to confirming correct tube placement, not maintaining patency. Choice D is also incorrect because diluting the medication with normal saline is not primarily aimed at maintaining the tube's patency.
5. During an integumentary assessment for a group of clients, a healthcare professional notes various skin findings. Which of the following findings should the professional recognize as requiring immediate intervention?
- A. Pallor
- B. Cyanosis
- C. Jaundice
- D. Erythema
Correct answer: B
Rationale: Cyanosis, a bluish discoloration of the skin, indicates inadequate oxygenation and requires immediate intervention. It suggests a severe lack of oxygen in the blood, which can be life-threatening. Pallor and jaundice are concerning findings but may not indicate an immediate life-threatening situation. Pallor can be a sign of anemia or low blood pressure, while jaundice may indicate liver dysfunction. Erythema, which is redness of the skin, is typically not an emergency and can be caused by various factors such as inflammation or increased blood flow to the area.
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