HESI LPN
Practice HESI Fundamentals Exam
1. 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 ÷ 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.
2. A patient has damage to the cerebellum. Which disorder is most important for the nurse to assess?
- A. Impaired balance
- B. Hemiplegia
- C. Muscle sprain
- D. Lower extremity paralysis
Correct answer: A
Rationale: When the cerebellum is damaged, it leads to impaired balance. The cerebellum plays a crucial role in coordinating movements and maintaining balance. Therefore, assessing the patient's balance is essential in determining the extent of cerebellar damage. Options B, C, and D are incorrect because hemiplegia refers to paralysis of one side of the body, muscle sprain is a soft tissue injury, and lower extremity paralysis involves loss of function in the lower limbs. These conditions are not directly associated with damage to the cerebellum.
3. While auscultating a client's abdomen, a nurse hears a blowing sound over the aorta. The nurse should identify this sound as which of the following?
- A. Gallop
- B. Bruit
- C. Thrill
- D. Murmur
Correct answer: B
Rationale: The correct answer is B: Bruit. A bruit is a blowing sound indicating turbulent blood flow, often heard over the aorta. Choices A, C, and D are incorrect. A gallop is a cardiac sound resembling the sound of a galloping horse. A thrill is a vibration felt on palpation, and a murmur is a swooshing or whooshing sound heard during auscultation of the heart or blood vessels. In this scenario, the blowing sound over the aorta specifically indicates a bruit, which signifies turbulent blood flow and should be further assessed by the healthcare provider.
4. A client is to receive cimetidine (Tagamet) 300 mg q6h IVP. The preparation arrives from the pharmacy diluted in 50 ml of 0.9% NaCl. The LPN plans to administer the IVPB dose over 20 minutes. For how many ml/hr should the infusion pump be set to deliver the secondary infusion?
- A. 150
- B. 50
- C. 100
- D. 75
Correct answer: A
Rationale: Setting the infusion pump to 150 ml/hr ensures the correct administration rate of the IVPB dose over 20 minutes. To calculate the infusion rate, consider that the total volume to be infused is 50 ml over 20 minutes. To convert this to ml/hr, the calculation is (50 ml / 20 minutes) x 60 minutes/hr = 150 ml/hr. Choices B, C, and D are incorrect as they do not reflect the correct calculation for the infusion rate needed to deliver the secondary infusion over the specified time.
5. A nurse is caring for a client postoperatively. When the nurse prepares to change the dressing, the client says it hurts. Which intervention is the nurse’s priority action?
- A. Administer pain medication 45 minutes prior to dressing change.
- B. Change the dressing quickly to minimize pain.
- C. Provide reassurance to the client that the pain will pass.
- D. Use a less painful dressing technique.
Correct answer: A
Rationale: Administering pain medication before the dressing change is the priority action to help manage the client's pain effectively. This intervention ensures that the client is comfortable during the procedure. Changing the dressing quickly may cause more discomfort to the client. Providing reassurance is important but does not address the immediate pain concern. Using a less painful dressing technique may be helpful, but administering pain medication first is the priority to address the client's pain promptly.
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