HESI LPN
HESI Fundamentals Study Guide
1. A nurse is preparing to administer multiple medications to a client who has an enteral feeding tube. Which of the following actions should the nurse plan to take?
- A. Dissolve each medication in 5 mL of sterile water.
- B. Draw up each medication separately in the syringe.
- C. Push the syringe plunger gently if feeling resistance.
- D. Flush the tube with 15 mL of sterile water.
Correct answer: D
Rationale: The correct action the nurse should take when administering multiple medications to a client with an enteral feeding tube is to flush the tube with 15-30 mL of sterile water before and between medications, and 30-60 mL after the last medication. This helps prevent clogging and ensures each medication is delivered effectively. Choice A is incorrect as medications should not be dissolved in water for administration through an enteral feeding tube. Choice B is incorrect because each medication should be drawn up and administered separately to prevent any potential interactions. Choice C is incorrect as resistance while pushing the plunger may indicate a problem that needs to be addressed before continuing with the administration.
2. A client with chronic kidney disease is being assessed. Which laboratory value would be most concerning?
- A. Serum creatinine of 3.0 mg/dL
- B. Blood urea nitrogen (BUN) of 45 mg/dL
- C. Serum potassium of 6.5 mEq/L
- D. Hemoglobin of 10 g/dL
Correct answer: C
Rationale: In a client with chronic kidney disease, an elevated serum potassium level (hyperkalemia) is the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias due to its effect on the electrical conduction system of the heart. Monitoring and managing serum potassium levels are crucial in patients with chronic kidney disease to prevent serious complications. While elevated serum creatinine (Choice A) and Blood Urea Nitrogen (BUN) levels (Choice B) indicate impaired kidney function, hyperkalemia poses an immediate risk of cardiac complications. Hemoglobin levels (Choice D) are typically lower in chronic kidney disease due to decreased erythropoietin production, but they do not present an immediate life-threatening risk like hyperkalemia.
3. A client who is receiving chemotherapy for cancer treatment is experiencing nausea and vomiting. What is the best intervention for the LPN/LVN to implement?
- A. Offer the client small, frequent meals.
- B. Provide antiemetic medication as prescribed.
- C. Encourage the client to drink clear liquids.
- D. Assist the client with oral care.
Correct answer: B
Rationale: The best intervention for a client experiencing chemotherapy-induced nausea and vomiting is to provide antiemetic medication as prescribed. This medication helps in managing and reducing nausea and vomiting, providing relief to the client. Offering small, frequent meals (Choice A) may not address the underlying cause of the symptoms. Encouraging clear liquid intake (Choice C) may not be effective in controlling nausea and vomiting associated with chemotherapy. Assisting with oral care (Choice D) is important for overall comfort but may not directly address the symptoms of nausea and vomiting.
4. The healthcare provider prescribes furosemide (Lasix) 15 mg IV stat. On hand is Lasix 20 mg/2 ml. How many milliliters should the LPN/LVN administer?
- A. 1 ml.
- B. 1.5 ml.
- C. 1.75 ml.
- D. 2 ml.
Correct answer: B
Rationale: To calculate the correct dose of 15 mg, the LPN/LVN should administer 1.5 ml of Lasix (20 mg/2 ml). This calculation ensures precise dosing. Choice A (1 ml) is too low and would provide only 10 mg, while choice C (1.75 ml) and choice D (2 ml) would exceed the prescribed dose, resulting in potential adverse effects. It is important for the LPN/LVN to administer the exact prescribed dose to ensure therapeutic efficacy and avoid unnecessary complications.
5. A client with asthma is prescribed a corticosteroid inhaler. Which instruction should the nurse provide to the client to prevent a common side effect of this medication?
- A. Use the inhaler only when experiencing asthma symptoms.
- B. Rinse the mouth with water after using the inhaler.
- C. Increase fluid intake while using the inhaler.
- D. Avoid eating or drinking for 30 minutes after using the inhaler.
Correct answer: B
Rationale: The correct instruction for the client using a corticosteroid inhaler to prevent a common side effect is to rinse the mouth with water after using the inhaler. Corticosteroid inhalers can lead to oral thrush, a fungal infection in the mouth. Rinsing the mouth helps reduce the risk of developing oral thrush. Choices A, C, and D are incorrect because using the inhaler only when experiencing symptoms, increasing fluid intake, or avoiding eating/drinking for 30 minutes after use are not directly related to preventing oral thrush, which is the common side effect associated with corticosteroid inhalers.
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