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 client is refusing a blood transfusion for religious reasons. The client's partner wants the client to have the blood transfusion. Which of the following actions should the nurse take?
- A. Ask the client to consider a direct donation
- B. Withhold the blood transfusion
- C. Request a consultation with the ethics committee
- D. Ask the client's family to intervene
Correct answer: B
Rationale: The correct action for the nurse to take in this situation is to withhold the blood transfusion. The principle of autonomy ensures that a competent client has the right to refuse treatment, even if their decision conflicts with the wishes of their partner or family. Asking the client to consider a direct donation (Choice A) is not appropriate as it disregards the client's autonomy and religious beliefs. Requesting a consultation with the ethics committee (Choice C) may be considered in complex ethical dilemmas, but in this case, the client's autonomy should be respected first. Asking the client's family to intervene (Choice D) is not appropriate as the client has the right to make their own healthcare decisions based on their religious beliefs.
3. A client has been admitted to the hospital with severe diarrhea. The nurse should monitor the client for which complication?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: A
Rationale: Severe diarrhea can lead to metabolic acidosis due to the loss of bicarbonate. When there is excessive loss of bicarbonate through diarrhea, the pH of the blood decreases, leading to metabolic acidosis. Metabolic alkalosis (Choice B) is not typically associated with severe diarrhea as it involves elevated pH and bicarbonate levels. Hyperkalemia (Choice C) is less likely with severe diarrhea as potassium is often lost along with fluids. Hypercalcemia (Choice D) is not a common complication of severe diarrhea; instead, hypocalcemia may occur due to malabsorption of calcium.
4. A patient uses an in-the-canal hearing aid. Which assessment is a priority?
- A. Eyeglass usage
- B. Cerumen buildup
- C. Type of physical exercise
- D. Excessive moisture problems
Correct answer: B
Rationale: When a patient uses an in-the-canal hearing aid, cerumen buildup is a critical issue that needs to be regularly assessed. Cerumen can easily block the sound passage and affect the functionality of the hearing aid. Assessing and managing cerumen buildup is a priority to ensure the proper functioning of the hearing aid. Eyeglass usage, type of physical exercise, and excessive moisture problems are not directly related to the specific issue of cerumen buildup in in-the-canal hearing aids, making them lower priority assessments in this context.
5. A client with a left leg cast is being taught how to use crutches. Which of the following statements should indicate to the nurse that the client understands the teaching?
- A. When descending stairs, I will first shift my weight to my right (unaffected) leg.
- B. I will use crutches to support my weight on my left leg.
- C. When ascending stairs, I will lead with my left leg.
- D. I will keep my crutches under my arms for support.
Correct answer: A
Rationale: The correct answer is A. Shifting weight to the unaffected leg when descending stairs is crucial for maintaining balance and safety. This technique helps prevent falls and distributes weight appropriately. Choices B, C, and D are incorrect because using crutches to support the weight on the injured leg, leading with the injured leg when ascending stairs, and keeping crutches under the arms are all potentially unsafe practices that could lead to further injury or accidents.
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