HESI LPN
Medical Surgical HESI
1. A client is currently receiving an infusion labeled as 5% dextrose injection 500 ml with heparin sodium 25,000 units at 14 mL/hour per pump. A prescription is received to change the rate of the infusion to heparin 1,000 units/hour. How many ml/hour should the nurse program the infusion pump?
- A. 16 ml/hour.
- B. 18 ml/hour.
- C. 20 ml/hour.
- D. 22 ml/hour.
Correct answer: C
Rationale: To deliver 1,000 units/hour from a solution with 25,000 units in 500 ml, the rate should be set to 20 ml/hour. This is calculated by determining that the solution has 50 units/ml (25,000 units / 500 ml = 50 units/ml) and then dividing the required 1,000 units/hour by 50 units/ml, resulting in 20 ml/hour. Therefore, the nurse should program the infusion pump to deliver heparin at 20 ml/hour. Choices A, B, and D are incorrect as they do not align with the calculated rate of 20 ml/hour.
2. After hospitalization for SIADH, a client develops pontine myelinolysis. Which intervention should the nurse implement first?
- A. Reorient the client to the room
- B. Place an eye patch on one eye
- C. Evaluate the client's ability to swallow
- D. Perform range of motion exercises
Correct answer: C
Rationale: Evaluating the client's ability to swallow is the priority intervention in this scenario. Pontine myelinolysis can affect neurological functions, including swallowing ability, putting the client at risk for aspiration. Assessing the client's ability to swallow will help prevent complications such as aspiration pneumonia. Reorienting the client to the room, placing an eye patch, or performing range of motion exercises are not as critical as ensuring the client can safely swallow.
3. Methotrexate is prescribed for a client with rheumatoid arthritis (RA) who is also taking aspirin. What is the best explanation for the nurse to provide as to why a second medication has been added?
- A. Methotrexate slows the disease progression while aspirin controls the symptoms.
- B. Methotrexate helps to reduce the side effects of aspirin.
- C. Methotrexate has fewer harmful side effects than aspirin.
- D. Methotrexate enhances the effect of aspirin.
Correct answer: A
Rationale: The correct answer is A. Methotrexate is a disease-modifying antirheumatic drug (DMARD) that slows the progression of rheumatoid arthritis (RA), while aspirin helps control symptoms such as pain and inflammation. Therefore, the combination of methotrexate and aspirin is beneficial in managing RA by addressing both disease progression and symptom control. Choices B, C, and D are incorrect because methotrexate is not added to reduce the side effects of aspirin, has different side effects compared to aspirin, and does not enhance the effect of aspirin.
4. A client who is newly diagnosed with emphysema is being prepared for discharge. Which instruction is best for the nurse to provide the client to assist them with dyspnea self-management?
- A. Allow additional time to complete physical activities to reduce oxygen demand.
- B. Practice inhaling through the nose and exhaling slowly through pursed lips.
- C. Use a humidifier to increase home air quality humidity between 30-50%.
- D. Strengthen abdominal muscles by alternating leg raises during exhalation.
Correct answer: B
Rationale: The correct answer is B. Instructing the client to practice inhaling through the nose and exhaling slowly through pursed lips can help improve oxygenation and reduce dyspnea. This technique, known as pursed lip breathing, can help regulate breathing patterns and decrease the work of breathing in clients with emphysema. Choice A is incorrect because allowing additional time for physical activities does not directly address dyspnea management. Choice C is incorrect as using a humidifier, although beneficial for respiratory conditions, does not specifically assist with dyspnea self-management. Choice D is also incorrect as strengthening abdominal muscles through leg raises does not directly target dyspnea relief.
5. A client with diabetes mellitus presents with confusion and diaphoresis. What is the priority nursing action?
- A. Check the blood glucose level
- B. Administer insulin immediately
- C. Offer a high-protein snack
- D. Place the client in a supine position
Correct answer: A
Rationale: The correct answer is to check the blood glucose level. In a client with diabetes mellitus presenting with confusion and diaphoresis, it is important to assess the blood glucose level first to determine if the symptoms are due to hypoglycemia. Administering insulin immediately (Choice B) without knowing the blood glucose level can worsen the condition if the client is hypoglycemic. Offering a high-protein snack (Choice C) is not appropriate as the severity of hypoglycemia is unknown, and placing the client in a supine position (Choice D) is not the priority action for these symptoms.
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