HESI LPN
HESI Fundamentals Study Guide
1. A client with a history of diabetes mellitus is experiencing polyuria, polydipsia, and polyphagia. What is the most important action for the LPN/LVN to take?
- A. Monitor the client's blood glucose level.
- B. Encourage the client to increase fluid intake.
- C. Administer insulin as prescribed.
- D. Assess the client's urine output.
Correct answer: A
Rationale: The most important action for the LPN/LVN to take when a client with a history of diabetes mellitus experiences symptoms of hyperglycemia such as polyuria, polydipsia, and polyphagia is to monitor the client's blood glucose level. This action helps assess the severity of hyperglycemia and guides further interventions. Encouraging the client to increase fluid intake (Choice B) may exacerbate the symptoms by further diluting the blood glucose concentration. Administering insulin as prescribed (Choice C) should be done based on the healthcare provider's orders and after assessing the blood glucose levels. Assessing the client's urine output (Choice D) is important but not the most immediate action needed in this scenario.
2. A nurse is preparing to check a client's blood pressure. Which of the following actions should the nurse take?
- A. Apply the cuff above the client's antecubital fossa.
- B. Use a cuff with a width that is about 60% of the client's arm circumference.
- C. Have the client sit with their arm resting at the level of their heart.
- D. Release the pressure on the client's arm at a rate of 5 to 6 mm per second.
Correct answer: A
Rationale: The correct action when checking a client's blood pressure is to apply the cuff above the client's antecubital fossa. Placing the cuff above this area allows for an accurate measurement of blood pressure. Choice B is incorrect because the cuff width should be approximately 40% of the arm circumference, not 60%. Choice C is incorrect as the client's arm should rest at heart level, not above it, to ensure an accurate reading. Choice D is incorrect as the pressure on the client's arm should be released at a rate of 2 to 3 mm per second, not 5 to 6 mm per second.
3. A client has a closed wound drainage system. Which of the following actions should the nurse take?
- A. Avoid pressing the container down to create a vacuum
- B. Wear sterile gloves while handling the drainage system
- C. Reset the container with the drainage port closed
- D. Maintain the drain in a dependent position to facilitate drainage
Correct answer: D
Rationale: In a closed wound drainage system, it is essential to maintain the drain in a dependent position to allow for proper drainage. Gravity aids in the flow of drainage, preventing fluid backflow or pooling. Avoiding pressing the container down to create a vacuum (Choice A) is crucial as it can lead to complications in the system. Wearing sterile gloves (Choice B) is important for infection control when handling the drainage system. Resetting the container with the drainage port closed (Choice C) is incorrect as it can cause spillage and contamination of the surrounding area.
4. A nurse on a medical-surgical unit is washing her hands prior to assisting with a surgical procedure. Which of the following actions by the nurse demonstrates proper surgical hand-washing techniques?
- A. The nurse washes with her hands held higher than her elbows.
- B. The nurse uses a brush to scrub under her nails.
- C. The nurse washes for at least 30 seconds.
- D. The nurse uses alcohol-based hand rub only.
Correct answer: A
Rationale: Proper surgical hand-washing technique involves keeping the hands higher than the elbows to prevent contamination. Washing with hands held lower than the elbows can lead to potential contamination. Using a brush to scrub under the nails is not recommended as it can cause microabrasions, increasing infection risk. While washing for at least 30 seconds is a good practice for thorough hand hygiene, hand positioning is critical during surgical hand-washing. Using alcohol-based hand rub alone is insufficient for surgical hand-washing as it may not effectively remove dirt, debris, and transient microorganisms.
5. The healthcare professional is preparing to administer an intramuscular injection to an adult client. Which site is most appropriate for the LPN/LVN to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Dorsogluteal site
- D. Rectus femoris site
Correct answer: B
Rationale: The ventrogluteal site is the most appropriate and safest site for administering an intramuscular injection to an adult client. It is preferred due to its thick muscle mass and fewer major blood vessels and nerves in the area, reducing the risk of injury or complications. The deltoid muscle is commonly used for vaccines and small-volume injections but may not be suitable for larger volumes. The dorsogluteal site has fallen out of favor due to the risk of injury to the sciatic nerve and other underlying structures. The rectus femoris site is not typically used for intramuscular injections in adults.
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