HESI LPN
HESI Fundamental Practice Exam
1. When reviewing car seat use with the parents of a 1-month-old infant, which of the following instructions should the nurse include?
- A. Use a car seat that has a three-point harness system.
- B. Position the car seat so that the infant is rear-facing.
- C. Secure the car seat in the front passenger seat of the vehicle.
- D. Convert to a booster seat after 12 months.
Correct answer: B
Rationale: The correct instruction for car seat use with a 1-month-old infant is to position the car seat so that the infant is rear-facing. This orientation provides the safest option for infants as it supports their head, neck, and spine. While using a car seat with a three-point harness system is appropriate for infants, placing the car seat in the front passenger seat is not recommended due to the presence of airbags, which can pose a risk to the infant in the event of deployment. Additionally, transitioning to a booster seat is not suitable at 12 months; infants should remain in rear-facing car seats until they outgrow the seat's height or weight limits, typically around 2 years of age.
2. During a blood transfusion, which observation indicates that the client is experiencing a transfusion reaction?
- A. The client reports feeling warm and flushed.
- B. The client develops a rash on the chest and back.
- C. The client experiences chills and a fever.
- D. The client complains of back pain and shortness of breath.
Correct answer: D
Rationale: Complaints of back pain and shortness of breath are classic signs of a transfusion reaction, specifically indicating a hemolytic reaction. This reaction can lead to the release of hemoglobin into the bloodstream, causing back pain and shortness of breath due to clot formation in the blood vessels, leading to decreased oxygen delivery. Warmth, flushing, rash, chills, and fever are more commonly associated with allergic reactions or febrile non-hemolytic reactions during transfusions. Therefore, options A, B, and C are incorrect in this context.
3. A client is receiving discharge instructions for using a walker. Which statement indicates an understanding of the teaching?
- A. I will hire someone to trim the tree that hangs low over the stairs of my front porch.
- B. I will avoid using the walker on uneven surfaces.
- C. I will use the walker on stairs for added support.
- D. I will not need to make any changes to my home environment.
Correct answer: A
Rationale: The correct answer is A because hiring someone to trim low-hanging branches over stairs ensures home safety and reflects an understanding of walker use. This action indicates the client's awareness of potential hazards and the importance of a safe environment for walker use. Choice B is incorrect as avoiding uneven surfaces is a general safety precaution but does not directly relate to walker use and does not demonstrate an understanding of the teaching. Choice C is incorrect because using a walker on stairs is not recommended due to safety concerns such as balance and fall risks. Choice D is incorrect as making no changes to the home environment may pose safety risks when using a walker, showing a lack of understanding regarding safety precautions needed for walker use.
4. A child weighing 20 kg has a new prescription for cefoxitin at 80 mg/kg/day administered intravenously every 6 hours. How much cefoxitin should be administered with each dose?
- A. 400 mg
- B. 200 mg
- C. 1600 mg
- D. 100 mg
Correct answer: A
Rationale: To determine the amount of cefoxitin to be administered with each dose, first, calculate the total daily dose by multiplying the child's weight (20 kg) by the prescribed dose (80 mg/kg/day): 80 mg/kg/day × 20 kg = 1600 mg/day. Since the medication is administered every 6 hours (4 doses/day), divide the total daily dose by the number of doses: 1600 mg / 4 = 400 mg. Therefore, each dose should be 400 mg. Choice B (200 mg) is incorrect because it is half the calculated dose. Choice C (1600 mg) is incorrect as it represents the total daily dose, not the dose per administration. Choice D (100 mg) is incorrect as it is a quarter of the calculated dose.
5. A healthcare professional is assessing an adult client who has been immobile for the past 3 weeks. The healthcare professional should identify that which of the following findings requires further intervention?
- A. Erythema on pressure points
- B. Lower-extremity pulse strength of 2+
- C. Fluid intake of 3,000 mL per day
- D. A bowel movement every other day
Correct answer: A
Rationale: Erythema on pressure points indicates potential skin breakdown due to prolonged immobility. It requires immediate intervention to prevent pressure ulcers. Lower-extremity pulse strength of 2+ is a normal finding, indicating adequate peripheral perfusion. Fluid intake of 3,000 mL per day is within the normal range and promotes hydration. A bowel movement every other day is a reasonable frequency for some individuals and does not necessarily indicate a need for immediate intervention in this scenario.
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