HESI LPN
Medical Surgical HESI 2023
1. A client is receiving a secondary infusion of erythromycin 1 gram in 100 mL dextrose 5% in water (D5W) to be infused in 45 minutes. How many mL/hour should the nurse program the infusion pump?
- A. 100 mL/hour.
- B. 125 mL/hour.
- C. 133 mL/hour.
- D. 150 mL/hour.
Correct answer: C
Rationale: To infuse 100 mL in 45 minutes, the infusion rate should be set to 133 mL/hour (100 mL / 0.75 hours). This calculation is obtained by dividing the total volume to be infused by the total time for infusion (100 mL / 0.75 hours = 133 mL/hour). Therefore, choice C is the correct answer. Choices A, B, and D are incorrect because they do not accurately calculate the infusion rate required to deliver the medication within the specified time frame.
2. An older adult woman with a long history of COPD is admitted with progressive shortness of breath and a persistent cough, is anxious, and is complaining of dry mouth. Which intervention should the nurse implement?
- A. Administer a prescribed sedative
- B. Encourage client to drink water
- C. Apply a high flow venturi mask
- D. Assist her to an upright position
Correct answer: D
Rationale: Assisting the client to an upright position is the most appropriate intervention in this situation. Placing the client upright helps improve lung expansion by reducing diaphragmatic pressure, facilitating better air exchange, and increasing oxygenation. This position also aids in easing breathing efforts. Administering a sedative (Choice A) may further depress the respiratory system, worsening the breathing problem. Encouraging the client to drink water (Choice B) may not directly address the respiratory distress caused by COPD. Applying a high flow venturi mask (Choice C) may be beneficial in some cases but assisting the client to an upright position should be the priority to optimize respiratory function.
3. When planning care for a client newly diagnosed with open-angle glaucoma, the nurse identifies a priority nursing problem of visual sensory/perceptual alterations. This problem is based on which etiology?
- A. Limited eye movement.
- B. Decreased peripheral vision.
- C. Blurred distance vision.
- D. Photosensitivity.
Correct answer: B
Rationale: The correct answer is B: Decreased peripheral vision. In open-angle glaucoma, decreased peripheral vision is a characteristic symptom resulting from increased intraocular pressure. This visual impairment can lead to sensory/perceptual alterations. Choice A, limited eye movement, is not directly associated with the pathophysiology of open-angle glaucoma. Choice C, blurred distance vision, is more commonly seen in conditions like myopia or presbyopia. Choice D, photosensitivity, is not a typical manifestation of open-angle glaucoma and is more commonly associated with conditions like migraines or certain medications.
4. On the first postoperative day, the nurse finds an older male client disoriented and trying to climb over the bed railing. Previously, he was oriented to person, place, and time on admission. Which intervention should the nurse implement first?
- A. Administer a sedative.
- B. Determine the client’s blood pressure.
- C. Apply soft restraints.
- D. Call for assistance.
Correct answer: B
Rationale: The correct intervention the nurse should implement first is to determine the client’s blood pressure. Assessing the blood pressure is crucial in this situation to rule out physiological causes like hypotension leading to the client's disorientation. Administering a sedative (Choice A) without understanding the underlying cause may worsen the situation. Applying soft restraints (Choice C) should not be the initial action and can be considered later if necessary. Calling for assistance (Choice D) may be needed eventually, but assessing the client's blood pressure takes precedence to address the immediate concern.
5. A client who is experiencing respiratory distress is admitted with respiratory acidosis. Which pathophysiological process supports the client’s respiratory acidosis?
- A. Low oxygen levels are present in the blood.
- B. High levels of carbon dioxide have accumulated in the blood.
- C. Increased bicarbonate levels are causing alkalosis.
- D. Respiratory rate is increased, causing hyperventilation.
Correct answer: B
Rationale: High levels of carbon dioxide in the blood lead to respiratory acidosis due to inadequate ventilation. The correct answer is B. In respiratory acidosis, the accumulation of carbon dioxide in the blood occurs due to inadequate exhalation, leading to acidosis. Choice A is incorrect as low oxygen levels are related to hypoxemia, not respiratory acidosis. Choice C is incorrect as increased bicarbonate levels would lead to alkalosis, not acidosis. Choice D is incorrect as an increased respiratory rate causing hyperventilation would actually help decrease carbon dioxide levels, not lead to respiratory acidosis.
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