HESI LPN
HESI Fundamentals Study Guide
1. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which statement by the client indicates a need for further teaching?
- A. I will avoid foods high in vitamin K.
- B. I will take my medication at the same time every day.
- C. I will use a soft toothbrush to prevent gum bleeding.
- D. I can take aspirin if I have a headache.
Correct answer: D
Rationale: The correct answer is 'D: I can take aspirin if I have a headache.' This statement indicates a need for further teaching because aspirin can increase the risk of bleeding in clients taking warfarin. Clients on warfarin therapy should avoid taking aspirin or any other medications that can increase the risk of bleeding without consulting their healthcare provider. Choices A, B, and C are correct statements that demonstrate understanding of warfarin therapy and its potential side effects. Avoiding foods high in vitamin K helps maintain the effectiveness of warfarin, taking medication at the same time every day ensures consistent therapeutic levels, and using a soft toothbrush helps prevent gum bleeding, which can be a side effect of warfarin therapy.
2. A nurse is caring for a client receiving fluid through a peripheral IV catheter. Which of the following findings at the IV site should the nurse identify as infiltration?
- A. purulent exudate
- B. warmth
- C. skin blanching
- D. bleeding
Correct answer: C
Rationale: Infiltration occurs when the IV fluid leaks into the surrounding tissue instead of entering the bloodstream properly. Skin blanching, swelling, and coolness at the IV site are typical signs of infiltration. Purulent exudate (choice A) is associated with infection, warmth (choice B) can indicate phlebitis, and bleeding (choice D) may occur if the IV catheter punctures a blood vessel.
3. When caring for an older adult client who becomes agitated when asked to remove dentures before surgery, which of the following responses should the nurse make?
- A. "What worries you about being without your teeth?"
- B. "You need to follow the preoperative instructions and remove your dentures."
- C. "It's important to remove dentures to ensure proper fitting of the mask during anesthesia."
- D. "I will explain why dentures need to be removed before surgery."
Correct answer: A
Rationale: The correct response is to ask the client about their concerns regarding being without their teeth. This approach helps address the client's anxiety and provides insight into the reason for their agitation. Choice B is authoritarian and does not address the client's emotional needs. Choice C focuses on the technical aspect of surgery and does not address the client's emotional state. Choice D implies a one-way communication without addressing the client's feelings or concerns.
4. A nurse is preparing to administer methylprednisolone 10 mg by IV bolus. The amount available is methylprednisolone injection 40-mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Do not use a trailing zero.)
- A. 0.3 mL
- B. 0.25 mL
- C. 0.4 mL
- D. 0.5 mL
Correct answer: A
Rationale: To calculate the mL to administer, use the formula: Dose required (mg) ÷ Stock concentration (mg/mL) = Volume to administer (mL). In this case, 10 mg ÷ 40 mg/mL = 0.25 mL. However, when rounding to the nearest tenth, the answer should be 0.3 mL. Therefore, the nurse should administer 0.3 mL. Choice A is the correct answer. Choice B (0.25 mL) is the result obtained before rounding. Choice C (0.4 mL) and Choice D (0.5 mL) are incorrect calculations.
5. When assisting an 82-year-old client to ambulate, it is important for the LPN/LVN to realize that the center of gravity for an elderly person is in the
- A. Arms.
- B. Upper torso.
- C. Head.
- D. Feet.
Correct answer: B
Rationale: The correct answer is 'Upper torso.' In elderly individuals, the center of gravity tends to shift upwards towards the upper torso due to various factors such as changes in posture and muscle strength. Understanding this is crucial for safe ambulation as it helps in maintaining balance and stability. Choices A, 'Arms,' C, 'Head,' and D, 'Feet,' are incorrect. The center of gravity is not typically located in the arms, head, or feet. It is higher up in the body, specifically in the upper torso. Knowing the correct location of the center of gravity is essential for assisting elderly clients in ambulation effectively and preventing falls.
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