HESI LPN
HESI Fundamental Practice Exam
1. A nurse is calculating a client's fluid intake over the past 8 hr. Which of the following items should the nurse plan to document on the client's intake and output record as 120 mL of fluid?
- A. 2 cups of soup
- B. 1 quart of water
- C. 8 oz of ice chips
- D. 6 oz of tea
Correct answer: C
Rationale: The correct answer is C: 8 oz of ice chips. When calculating fluid intake, the nurse should document half of the volume of ice chips to account for the air in between the chips. Therefore, 8 oz of ice chips equals 120 mL of fluid. Choices A, B, and D are incorrect because they do not equate to 120 mL of fluid intake as per the given scenario. Choice A, 2 cups of soup, is more than 120 mL. Choice B, 1 quart of water, is significantly more than 120 mL. Choice D, 6 oz of tea, is less than 120 mL.
2. A healthcare provider is providing discharge teaching to a client about self-administering heparin.
- A. Administer medication in the abdomen.
- B. Administer medication in the thigh.
- C. Administer medication in the upper arm.
- D. Administer medication in the buttock.
Correct answer: A
Rationale: Heparin is typically administered in the abdomen for self-injection to avoid muscle tissue and for better absorption. The subcutaneous tissue in the abdomen provides a larger area for injection and is usually recommended for heparin administration. Administering heparin in the thigh, upper arm, or buttock may not be as effective or safe as the abdomen due to variations in absorption rates and potential risks associated with muscle injection.
3. What is the most important action for the LPN/LVN to take to prevent infection in a client with an indwelling urinary catheter?
- A. Ensure the catheter tubing is free of kinks.
- B. Change the catheter every 72 hours.
- C. Clean the perineal area with an antiseptic solution daily.
- D. Irrigate the catheter with normal saline every shift.
Correct answer: A
Rationale: The most crucial action to prevent infection in a client with an indwelling urinary catheter is to ensure the catheter tubing is free of kinks. This step helps prevent obstruction in the tubing, maintaining proper urine flow and reducing the risk of infection. Changing the catheter every 72 hours is not recommended unless clinically indicated, as routine changes can increase the risk of introducing pathogens. Cleaning the perineal area with an antiseptic solution is essential for general hygiene but does not directly prevent catheter-related infections. Irrigating the catheter with normal saline every shift is not a standard practice and can introduce microorganisms into the urinary tract, increasing the risk of infection.
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 in a provider’s office tells the nurse that, 'I fast for several days each week to help control my weight.' The client takes several medications for various chronic issues. The nurse should explain to the client that which of the following mechanisms that result from fasting puts her at risk for medication toxicity?
- A. Increasing the metabolism of the medications over time
- B. Increasing the protein-binding response
- C. Increasing medications’ transit time through the intestines
- D. Decreasing the excretion of medications
Correct answer: B
Rationale: Fasting can lead to an increased protein-binding response of medications. This can result in a higher concentration of bound medications in the bloodstream, potentially causing toxicity as the medications may not be readily available for metabolism or excretion. Choice A is incorrect because fasting typically doesn't increase medication metabolism. Choice C is incorrect as fasting usually decreases transit time through the intestines. Choice D is incorrect since fasting generally does not decrease medication excretion.
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