HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is reviewing a client's fluid and electrolyte status. Which of the following findings should the healthcare professional report to the provider?
- A. BUN 15 mg/dL
- B. Creatinine 0.8 mg/dL
- C. Sodium 143 mEq/L
- D. Potassium 5.4 mEq/L
Correct answer: D
Rationale: The correct answer is D. A potassium level of 5.4 mEq/L is above the expected reference range, indicating hyperkalemia. Hyperkalemia can lead to serious complications such as dysrhythmias, making it important for the healthcare professional to report this finding to the provider for further evaluation and intervention. Choices A, B, and C fall within normal ranges and do not pose an immediate risk to the client's health, so they would not warrant immediate reporting to the provider. Elevated BUN or creatinine levels may indicate kidney dysfunction, while a sodium level of 143 mEq/L falls within the normal range for adults and does not typically require urgent intervention.
2. During an IV catheter insertion demonstration, which statement by a nurse indicates understanding of the procedure?
- A. “I will thread the needle into the vein at an angle of 10 to 30 degrees with the bevel up.”
- B. “I will insert the needle into the client’s skin at an angle of 10 to 30 degrees with the bevel up.”
- C. “I will apply pressure approximately 1.2 inches below the insertion site before removing the needle.”
- D. “I will select a vein in the antecubital fossa for IV insertion based on its size and easily accessible location.”
Correct answer: B
Rationale: The correct technique for IV catheter insertion involves inserting the needle at a 10 to 30-degree angle with the bevel up. This angle facilitates proper vein puncture, reduces the risk of complications, and minimizes trauma to the vein. Choice A is incorrect because threading the needle into the vein at an angle of 10 to 30 degrees with the bevel up is the correct technique, not threading it all the way into the vein. Choice C is incorrect because applying pressure 1.2 inches below the insertion site before removing the needle is not a standard step in IV catheter insertion. Choice D is incorrect because selecting the antecubital fossa vein solely based on its size and accessibility may not be the most appropriate criterion; vein selection should also consider factors like vein condition and patient comfort.
3. A client is being taught about medications at discharge. Which statement should the nurse identify as an indication that the client understands the instructions?
- A. I can open the time-release capsule with the beads in it and sprinkle them on my oatmeal.
- B. If I am having difficulty swallowing, I will add the liquid medication to a prepared package of pudding.
- C. I can crush the enteric-coated pill if needed.
- D. I will eat two crackers with the pain pills.
Correct answer: B
Rationale: The correct answer is B. Adding liquid medication to pudding can help with swallowing difficulties, demonstrating understanding of the instructions. Options A and C are incorrect as altering time-release capsules and enteric-coated pills is not recommended in medication administration. Option A is incorrect as time-release capsules should not be opened and sprinkled on food, affecting their efficacy. Option C is incorrect as crushing enteric-coated pills can affect their absorption. Option D is unrelated to medication administration and does not demonstrate understanding of the instructions.
4. A nurse is reviewing the correct use of a fire extinguisher with a client. Which of the following actions should the nurse direct the client to take first?
- A. Remove the safety pin from the extinguisher.
- B. Aim the extinguisher at the base of the fire.
- C. Squeeze the handle to release the extinguishing agent.
- D. Sweep the extinguisher from side to side.
Correct answer: A
Rationale: The correct first step in using a fire extinguisher is to remove the safety pin. This action enables the extinguisher to be activated and used effectively. Choice B, aiming the extinguisher at the base of the fire, comes after removing the safety pin. Choice C, squeezing the handle to release the extinguishing agent, and choice D, sweeping the extinguisher from side to side, are subsequent steps in using a fire extinguisher and should follow removing the safety pin.
5. 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.
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