HESI LPN
HESI Fundamentals Study Guide
1. The LPN/LVN mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min to a client weighing 182 pounds. Using a drip factor of 60 gtt/ml, how many drops per minute should the client receive?
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To calculate the drops per minute for the client, first, convert the weight from pounds to kilograms by dividing 182 by 2.2, which equals 82.72 kg. Then, calculate the dose in mcg/min by multiplying the weight in kg by the rate (82.72 kg * 5 mcg/kg/min = 413.6 mcg/min). Next, convert 50 mg to mcg (50 mg * 1000 = 50,000 mcg). Divide the total mcg (50,000 mcg) by the dose per minute (413.6 mcg/min) to get approximately 121 gtt/min. However, since the drip factor is 60 gtt/ml, the correct answer is 124 gtt/min, ensuring the accurate administration rate of the medication. Therefore, choice 'D' is the correct answer. Choices 'A', 'B', and 'C' are incorrect as they do not accurately reflect the calculated drops per minute based on the given information.
2. The healthcare provider is caring for a patient with a spinal cord injury and notices that the patient's hips have a tendency to rotate externally when the patient is supine. Which device will the healthcare provider use to help prevent injury secondary to this rotation?
- A. Hand rolls
- B. A trapeze bar
- C. A trochanter roll
- D. Hand-wrist splints
Correct answer: C
Rationale: A trochanter roll is the correct choice as it is used to prevent external rotation of the hips when the patient is in a supine position. Hand rolls (Choice A) are incorrect because they are used to prevent contractures of the fingers, wrist, and hand. A trapeze bar (Choice B) is not the correct option as it helps patients change positions in bed and aids with movement, not specifically for hip rotation. Hand-wrist splints (Choice D) are also incorrect as they are used to maintain the functional position of the wrist and hand, not to address hip rotation.
3. A client with rheumatoid arthritis is prescribed methotrexate. What information should the LPN include when teaching the client about this medication?
- A. Avoid exposure to sunlight.
- B. Take the medication with food.
- C. Increase fluid intake while on this medication.
- D. Report any signs of infection to the healthcare provider immediately.
Correct answer: D
Rationale: The correct answer is D: 'Report any signs of infection to the healthcare provider immediately.' Methotrexate is an immunosuppressant medication commonly used to treat rheumatoid arthritis. It can lower the immune system's ability to fight infections, making it crucial for clients to promptly report any signs of infection to prevent serious complications. Choices A, B, and C are incorrect because avoiding sunlight, taking the medication with food, and increasing fluid intake are not specific to methotrexate therapy and are not primary concerns associated with this medication.
4. A client is having difficulty breathing while laying in bed with a nasal cannula delivering oxygen. Which of the following interventions should the nurse take first?
- A. Suction the client's airway
- B. Administer a bronchodilator
- C. Increase the humidity in the client's room
- D. Assist the client to an upright position
Correct answer: D
Rationale: The correct answer is to assist the client to an upright position. When a client is having difficulty breathing, promoting optimal oxygenation is essential. Elevating the head of the bed improves ventilation and lung expansion by reducing pressure on the diaphragm. This position allows the lungs to expand fully, enhancing oxygen exchange. Suctioning the airway may be necessary if there are secretions causing obstruction, but it is not the first intervention in this scenario. Administering a bronchodilator is appropriate for bronchoconstriction but does not address the immediate need for better ventilation. Increasing humidity can be beneficial in certain respiratory conditions, but it is not the initial priority when a client is struggling to breathe.
5. 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?
- A. Ankle-foot orthotic
- B. Continuous passive motion machine
- C. Abduction splint
- D. Sequential compression device
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.
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