HESI LPN
HESI Fundamental Practice Exam
1. The healthcare professional is preparing to administer potassium chloride intravenously to a client with hypokalemia. Which action is most important?
- A. Monitor the client's respiratory rate
- B. Check the client's urine output
- C. Administer the potassium chloride as a rapid IV push
- D. Dilute the potassium chloride in an appropriate IV solution
Correct answer: D
Rationale: The correct answer is to dilute the potassium chloride in an appropriate IV solution. Potassium chloride should never be administered as a rapid IV push as it can lead to severe complications, including cardiac arrhythmias. Diluting the medication and administering it slowly helps reduce the risk of adverse effects. Monitoring the client's respiratory rate (Choice A) and checking urine output (Choice B) are important aspects of patient assessment but not the most crucial when administering potassium chloride. Administering potassium chloride as a rapid IV push (Choice C) is dangerous and can result in serious harm to the client.
2. A young mother of three children complains of increased anxiety during her annual physical exam. What information should the LPN/LVN obtain first?
- A. Sexual activity patterns.
- B. Nutritional history.
- C. Leisure activities.
- D. Financial stressors.
Correct answer: B
Rationale: The LPN/LVN should first obtain the nutritional history in this scenario. Nutrition plays a crucial role in mental health, and deficiencies or imbalances in diet can contribute to anxiety symptoms. Understanding the mother's nutritional intake can help identify any factors exacerbating her anxiety. Sexual activity patterns are not directly relevant to her anxiety symptoms unless specifically indicated. Leisure activities and financial stressors may be important but are secondary to addressing the potential impact of nutrition on anxiety.
3. A nurse is called away for an emergency while conversing with a client who is concerned about his medical diagnosis. The nurse returns to the client promptly, as promised. Which of the following ethical principles is the nurse demonstrating?
- A. Fidelity
- B. Autonomy
- C. Beneficence
- D. Justice
Correct answer: A
Rationale: The correct answer is A: Fidelity. Fidelity in nursing ethics involves keeping promises and being faithful to commitments, demonstrating reliability and trustworthiness. In this scenario, the nurse is exemplifying fidelity by returning promptly to the client as promised. Choice B, Autonomy, refers to respecting a patient's right to make their own decisions, not relevant in this situation. Choice C, Beneficence, involves the duty to act in the best interest of the patient, which is not the primary focus here. Choice D, Justice, pertains to fairness and equity in the distribution of healthcare resources, not applicable to the nurse's actions in this case.
4. A nurse is preparing to administer ketorolac 0.5 mg/kg IV bolus every 6 hr to a school-age child who weighs 66 lb. The available ketorolac injection is 30 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 0.5 mL
- B. 1 mL
- C. 1.5 mL
- D. 2 mL
Correct answer: A
Rationale: To calculate the dose, first convert the weight from pounds to kilograms. The child weighs 66 lb, which is approximately 30 kg. The prescribed dose is 0.5 mg/kg, so for a 30 kg child, the dose would be 0.5 mg/kg x 30 kg = 15 mg. Since the available ketorolac injection is 30 mg/mL, the nurse should administer 15 mg รท 30 mg/mL = 0.5 mL per dose. Therefore, choice A (0.5 mL) is the correct answer. Choices B, C, and D are incorrect as they do not accurately calculate the correct dose based on the child's weight and the concentration of the ketorolac injection.
5. A client needs to maintain a positive nitrogen balance for wound healing. Which of the following food items should the nurse recommend as a good source of complete protein?
- A. Cheddar cheese
- B. White rice
- C. Apples
- D. Green beans
Correct answer: A
Rationale: Cheddar cheese is the correct answer as it is a good source of complete protein that contains all essential amino acids required for maintaining a positive nitrogen balance for wound healing. Complete proteins provide all essential amino acids needed by the body. White rice, apples, and green beans do not offer complete proteins like cheddar cheese, making them inadequate choices for this purpose.
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