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. What could suddenly occur in a child with acute epiglottitis?
- A. Increased carbon dioxide levels
- B. Airway obstruction
- C. Inability to swallow
- D. Bronchial collapse
Correct answer: B
Rationale: In acute epiglottitis, the infected epiglottis becomes inflamed and can lead to sudden airway obstruction, which is a life-threatening emergency. This can cause difficulty breathing and necessitates immediate intervention to secure the airway. Increased carbon dioxide levels may occur due to inadequate ventilation resulting from airway obstruction, but the primary concern is the obstruction itself, not the carbon dioxide levels. Inability to swallow may be present due to pain and swelling in the throat but is not the immediate life-threatening complication associated with acute epiglottitis. Bronchial collapse is not a typical consequence of acute epiglottitis.
3. A 2-year-old child with laryngotracheobronchitis (LTB) is fussy and restless in the oxygen tent. The oxygen level in the tent is 25%, and blood gases are normal. What would be the correct action by the nurse?
- A. Restrain the child in the tent and notify the health care provider.
- B. Increase the oxygen concentration in the tent.
- C. Take the child out of the tent and into the playroom.
- D. Ask the mother for help in comforting the child.
Correct answer: B
Rationale: The child with LTB should be placed in the mist tent with 30% oxygen. Restlessness is caused by poor oxygenation. The child should not be taken out of the oxygenated tent. While the mother could be asked to help comfort the child, and the health care provider may be notified, the priority is to set the oxygen at the correct level.
4. The nurse is caring for a client with a suspected stroke. Which assessment finding is most indicative of a stroke?
- A. Chest pain
- B. Sudden confusion and difficulty speaking
- C. Gradual onset of weakness in the legs
- D. Nausea and vomiting
Correct answer: B
Rationale: The correct answer is B: Sudden confusion and difficulty speaking. These are classic signs of a stroke, indicating a neurological deficit that requires urgent medical attention. Choices A, C, and D are less indicative of a stroke. Chest pain is more commonly associated with cardiac issues, gradual onset of weakness in the legs could be related to other conditions like peripheral neuropathy, and nausea/vomiting may suggest gastrointestinal problems rather than a stroke.
5. A client with a spinal cord injury at the level of T1 is at risk for autonomic dysreflexia. Which symptom is indicative of this condition?
- A. Hypotension
- B. Tachycardia
- C. Severe headache
- D. Flushed skin below the level of injury
Correct answer: C
Rationale: Corrected Rationale: Autonomic dysreflexia is a condition commonly seen in clients with spinal cord injuries at T6 or above. It is characterized by a sudden onset of severe hypertension, pounding headache, profuse sweating, nasal congestion, and flushing of the skin above the level of injury. The severe headache is a key symptom resulting from uncontrolled hypertension. Choices A, B, and D are incorrect as autonomic dysreflexia typically presents with hypertension, not hypotension, tachycardia, or flushed skin below the level of injury.
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