HESI LPN
HESI Fundamental Practice Exam
1. A client is scheduled to have his alanine aminotransferase (ALT) level checked. The client asks the nurse to explain the laboratory test. Which of the following is an appropriate response by the nurse?
- A. “This test will indicate if you are at risk for developing blood clots.”
- B. “This test will determine if your heart is performing properly.”
- C. “This test will provide information about the function of your liver.”
- D. “This test is used to check how your kidneys are working.”
Correct answer: C
Rationale: The correct answer is C: “This test will provide information about the function of your liver.” Alanine aminotransferase (ALT) is an enzyme mainly found in the liver. An elevated ALT level may indicate liver damage or disease. Choices A, B, and D are incorrect because ALT is specifically related to liver function and not indicative of blood clot risk, heart performance, or kidney function.
2. During a home safety assessment for a client receiving supplemental oxygen, which observation should the nurse identify as proper safety protocol?
- A. The client uses non-acetone nail polish remover.
- B. The client uses an electric razor for shaving.
- C. The client cleans their oxygen equipment weekly.
- D. The client uses wool blankets.
Correct answer: A
Rationale: The correct answer is A. Using non-acetone nail polish remover is crucial for clients on supplemental oxygen as acetone is flammable and poses a safety risk. Acetone can react with oxygen, increasing the fire hazard. Choices B, C, and D are incorrect. Electric razors can generate sparks, which are dangerous near oxygen due to the risk of ignition. While cleaning oxygen equipment is important, the type of nail polish remover used is more critical for immediate safety. Wool blankets can create static electricity, increasing the risk of fire around oxygen due to its flammability.
3. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?
- A. 11,000 units.
- B. 13,000 units.
- C. 15,000 units.
- D. 17,000 units.
Correct answer: A
Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.
4. A 2-year-old child is brought to the health care provider's office with a chief complaint of mild diarrhea for 2 days. Nutritional counseling by the nurse should include which statement?
- A. Place the child on clear liquids and gelatin for 24 hours
- B. Continue with the regular diet and include oral rehydration fluids
- C. Give bananas, apples, rice, and toast as tolerated
- D. Place NPO for 24 hours, then rehydrate with milk and water
Correct answer: B
Rationale: In managing mild diarrhea in a 2-year-old child, it is important to maintain their regular diet and include oral rehydration fluids. Choice A of placing the child on clear liquids and gelatin for 24 hours may not provide adequate nutrition and can lead to further electrolyte imbalances. Choice C of giving bananas, apples, rice, and toast as tolerated is a part of the BRAT diet, which is not recommended as the primary approach anymore due to its limited nutritional value. Choice D of placing the child NPO for 24 hours and then rehydrating with milk and water is not appropriate as it can worsen dehydration and delay recovery. Therefore, the best option is to continue the child's regular diet while incorporating oral rehydration fluids to prevent dehydration and maintain nutritional status.
5. A nurse is caring for a client postoperatively. When the nurse prepares to change the dressing, the client says it hurts. Which intervention is the nurse’s priority action?
- A. Administer pain medication 45 minutes prior to dressing change.
- B. Change the dressing quickly to minimize pain.
- C. Provide reassurance to the client that the pain will pass.
- D. Use a less painful dressing technique.
Correct answer: A
Rationale: Administering pain medication before the dressing change is the priority action to help manage the client's pain effectively. This intervention ensures that the client is comfortable during the procedure. Changing the dressing quickly may cause more discomfort to the client. Providing reassurance is important but does not address the immediate pain concern. Using a less painful dressing technique may be helpful, but administering pain medication first is the priority to address the client's pain promptly.
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