HESI LPN
HESI Practice Test for Fundamentals
1. A client with a history of asthma presents to the emergency department with difficulty breathing and wheezing. Which of the following is the priority nursing action?
- A. Administer a bronchodilator
- B. Obtain a peak flow reading
- C. Provide supplemental oxygen
- D. Assess the client's respiratory rate
Correct answer: A
Rationale: In a client with a history of asthma experiencing difficulty breathing and wheezing, the priority nursing action is to administer a bronchodilator. This intervention helps relieve bronchospasm and improve the client's breathing. Obtaining a peak flow reading can provide additional information but is not the immediate priority in this situation. Providing supplemental oxygen may be needed but addressing the bronchospasm with a bronchodilator takes precedence. Assessing the client's respiratory rate is important but not as urgent as administering a bronchodilator to address the breathing difficulty.
2. A nurse is evaluating a client’s use of a cane. What is the correct use?
- A. Client holds the cane on the stronger side of the body.
- B. Client holds the cane on the weaker side of the body.
- C. Client holds the cane in front of the weaker side of the body.
- D. Client holds the cane in front of the stronger side of the body.
Correct answer: A
Rationale: The correct way to use a cane is for the client to hold it on the stronger side of the body. This positioning allows the cane to provide support to the weaker side, assisting with balance and stability. Placing the cane on the weaker side (Choice B) may not provide adequate support and could lead to an increased risk of falls. Holding the cane in front of the weaker side (Choice C) or in front of the stronger side (Choice D) does not optimize the support and stability needed while walking with a cane.
3. 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.
4. What is the most important action for preventing infection in a client with a central venous catheter?
- A. Changing the catheter dressing every 72 hours.
- B. Flushing the catheter with heparin solution daily.
- C. Ensuring the catheter is clamped when not in use.
- D. Maintaining sterile technique when handling the catheter.
Correct answer: D
Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. This action helps minimize the introduction of pathogens into the catheter site, reducing the risk of contamination and subsequent infection. Changing the catheter dressing every 72 hours, while important, does not directly address the prevention of infection at the insertion site. Flushing the catheter with heparin solution daily helps prevent occlusion but does not primarily focus on infection prevention. Ensuring the catheter is clamped when not in use is essential for preventing air embolism but does not directly relate to infection control.
5. A nurse is preparing to check a client's blood pressure. Which of the following actions should the nurse take?
- A. Apply the cuff above the client's antecubital fossa.
- B. Use a cuff with a width that is about 60% of the client's arm circumference.
- C. Have the client sit with their arm resting at the level of their heart.
- D. Release the pressure on the client's arm at a rate of 5 to 6 mm per second.
Correct answer: A
Rationale: The correct action when checking a client's blood pressure is to apply the cuff above the client's antecubital fossa. Placing the cuff above this area allows for an accurate measurement of blood pressure. Choice B is incorrect because the cuff width should be approximately 40% of the arm circumference, not 60%. Choice C is incorrect as the client's arm should rest at heart level, not above it, to ensure an accurate reading. Choice D is incorrect as the pressure on the client's arm should be released at a rate of 2 to 3 mm per second, not 5 to 6 mm per second.
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