a nurse is caring for a 6 year old child who has a new prescription for cefoxitin 80 mgkgday administered intravenously every 6 hours the child weighs
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Nursing Elites

HESI LPN

HESI Fundamentals 2023 Test Bank

1. 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?

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.

2. What action should the LPN/LVN take to prevent postoperative complications in a client who has undergone abdominal surgery?

Correct answer: A

Rationale: Encouraging the client to use an incentive spirometer regularly is crucial in preventing postoperative complications after abdominal surgery. This action helps prevent atelectasis by promoting lung expansion and improving air exchange in the lungs, reducing the risk of respiratory complications. Assisting the client in ambulating early is important for preventing issues like deep vein thrombosis but may not directly address respiratory concerns postoperatively. Positioning the client in high Fowler's position can help with respiratory distress but is not as specific to preventing postoperative respiratory complications as using an incentive spirometer. While encouraging the client to cough and deep breathe is generally beneficial for lung expansion, using an incentive spirometer is more effective and targeted in preventing atelectasis after abdominal surgery.

3. A client has right-sided paralysis following a cerebrovascular accident. Which of the following prescriptions should the nurse anticipate to prevent a plantar flexion contracture of the affected extremity?

Correct answer: A

Rationale: An ankle-foot orthotic is the correct choice to prevent a plantar flexion contracture in a paralyzed limb. An ankle-foot orthotic helps maintain proper alignment of the foot and ankle, preventing the foot from being permanently fixed in a pointed-down position. Continuous passive motion machines are typically used to promote joint movement after surgery and would not address the prevention of contractures in this case. Abduction splints are used to keep the legs apart and would not address the specific issue described. Sequential compression devices are used to prevent deep vein thrombosis by promoting circulation in the lower extremities and are not indicated for preventing plantar flexion contractures.

4. A young mother of three children complains of increased anxiety during her annual physical exam. What information should the LPN/LVN obtain first?

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.

5. A client with heart failure is being taught by a nurse on reducing daily sodium intake. What is the most important factor in determining the client's ability to learn new dietary habits?

Correct answer: A

Rationale: The most crucial factor in the client's ability to learn new dietary habits is their involvement in planning the change. When clients actively participate in setting their dietary goals, they are more likely to commit to and adhere to the changes. This empowerment fosters a sense of ownership and responsibility, enhancing the chances of successful dietary modifications. The presence of a dietitian, use of dietary supplements, and family support, while beneficial, are not as critical as the client's active participation in planning the dietary changes.

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