HESI LPN
HESI Fundamentals Practice Questions
1. When teaching a client how to administer medication through a jejunostomy tube, which of the following instructions should the nurse include?
- A. Flush the tube before and after each medication.
- B. Mix medications with enteral feeding.
- C. Push tablets through the tube slowly.
- D. Mix crushed medications before dissolving them in water.
Correct answer: A
Rationale: The correct answer is to flush the tube before and after each medication administration. This helps prevent clogging and ensures the medication is delivered properly. Mixing medications with enteral feeding (choice B) is incorrect as medications should be administered separately. Pushing tablets through the tube (choice C) is not recommended as they should be properly dissolved before administration. Mixing all crushed medications before dissolving them in water (choice D) is incorrect; medications should be dissolved individually to avoid interactions or inconsistencies in dosages.
2. In planning care for a premature infant with respiratory distress syndrome, nursing actions are based on the fact that the most likely cause of this problem stems from the infant's inability to
- A. Stabilize alveolar surface tension
- B. Maintain alveolar surface tension
- C. Promote normal pulmonary blood flow
- D. Regulate intra-cardiac pressure
Correct answer: B
Rationale: The correct answer is B: Maintain alveolar surface tension. Respiratory distress syndrome in premature infants is often caused by a deficiency in surfactant, a substance that helps maintain alveolar surface tension. Without adequate surfactant, the alveoli collapse, making it difficult for the infant to oxygenate effectively. Choices A, C, and D are incorrect because stabilizing alveolar surface tension is not the issue, promoting normal pulmonary blood flow and regulating intra-cardiac pressure are not directly related to the pathophysiology of respiratory distress syndrome in premature infants.
3. 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.
4. The nurse is caring for a client with a tracheostomy who is unable to clear secretions by coughing. What is the most appropriate action for the nurse to take?
- A. Encourage the client to take deep breaths.
- B. Provide humidified oxygen via tracheostomy collar.
- C. Suction the tracheostomy tube as needed.
- D. Change the tracheostomy dressing daily.
Correct answer: C
Rationale: Suctioning the tracheostomy tube as needed is the most appropriate action in this scenario. When a client with a tracheostomy is unable to clear secretions by coughing, suctioning helps remove the excess secretions from the airway, ensuring proper breathing. Encouraging deep breaths (Choice A) may not effectively address the immediate need to clear secretions. Providing humidified oxygen (Choice B) can help with oxygenation but does not directly address the issue of clearing secretions. Changing the tracheostomy dressing daily (Choice D) is important for maintaining cleanliness but is not the priority when the client is unable to clear secretions.
5. When replacing a client's surgical dressing, what should the nurse do?
- A. Don sterile gloves to remove the old dressing
- B. Wash hands thoroughly before removing the old dressing
- C. Use sterile gloves to remove the old dressing
- D. Apply a new dressing before removing the old one
Correct answer: C
Rationale: When replacing a client's surgical dressing, the nurse should use sterile gloves to remove the old dressing. Sterile technique is essential to prevent introducing infection to the wound. Choice A is incorrect because clean gloves are not sufficient; sterile gloves are necessary to maintain asepsis. Choice B, washing hands, is an important step before and after the procedure to maintain hand hygiene, but sterile gloves are required during the dressing change. Choice D is incorrect because a new dressing should only be applied after the old one has been removed to prevent contamination and ensure proper wound care.
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