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1. A client with multiple sclerosis is experiencing scotomas (blind spots), which are limiting peripheral vision. What intervention should the nurse include in this client's plan of care?
- A. Encourage the use of corrective lenses during the day
- B. Practice visual exercises that focus on a still object
- C. Alternate an eye patch from eye every 2 hours
- D. Teach techniques for scanning the environment
Correct answer: D
Rationale: The correct intervention for a client with multiple sclerosis experiencing scotomas and limited peripheral vision is to teach techniques for scanning the environment. This intervention helps the client compensate for vision loss by learning how to scan and explore their surroundings effectively. Encouraging the use of corrective lenses may not address the issue of scotomas, and visual exercises focusing on a still object may not enhance peripheral vision. Alternating an eye patch every 2 hours is not typically indicated for scotomas in multiple sclerosis, making it an incorrect choice.
2. A nurse working on an endocrine unit should see which client first?
- A. An adolescent male with diabetes who is arguing about his insulin dose.
- B. An older client with Addison’s disease whose current blood sugar level is 62mg/dl (3.44 mmol/l).
- C. An adult with a blood sugar of 384mg/dl (21.31mmol/l) and urine output of 350 ml in the last hour.
- D. A client taking corticosteroids who has become disoriented in the last two hours.
Correct answer: B
Rationale: The correct answer is B. The client with Addison’s disease and a blood sugar level of 62mg/dl (3.44 mmol/l) is experiencing hypoglycemia, which can progress to adrenal crisis. This situation requires immediate attention to prevent further complications. Choices A, C, and D, although concerning, do not pose an immediate life-threatening risk compared to the client with Addison’s disease and hypoglycemia. The adolescent arguing about his insulin dose can be addressed after stabilizing the client with Addison’s disease. The adult with high blood sugar and increased urine output may have hyperglycemia but is not in immediate danger. The client taking corticosteroids who is disoriented needs evaluation but is not in an acute life-threatening condition as the client with hypoglycemia.
3. A heparin infusion is prescribed for a client who weighs 220 pounds. After administering a bolus dose of 80 units/kg, the nurse calculates the infusion rate for the heparin sodium at 18 units/kg/hour. The available solution is Heparin Sodium 25,000 units in 5% Dextrose Injection 250 ml. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: B
Rationale: To calculate the infusion rate, first, find the total dose required per hour, which is the patient's weight (220 pounds) multiplied by the prescribed rate (18 units/kg/hour). This equals 3960 units/hour. Next, determine how many ml of the solution contain 25,000 units; this is 250 ml. Divide the total dose required per hour (3960 units) by the units per ml (25,000 units/250 ml) to find how many ml are needed per hour. This results in 27 ml/hour. Therefore, the nurse should program the infusion pump to deliver 27 ml/hour. Choice A (18) is incorrect as it does not account for the concentration of the heparin solution. Choices C (36) and D (45) are incorrect as they do not reflect the accurate calculations based on the patient's weight and the heparin concentration in the solution.
4. When preparing to discharge a male client who has been hospitalized for an adrenal crisis, the client expresses concern about having another crisis. He tells the nurse that he wants to stay in the hospital a few more days. Which intervention should the nurse implement?
- A. Administer antianxiety medication before providing discharge instructions
- B. Schedule a follow-up appointment for an outpatient psychosocial assessment
- C. Obtain a blood cortisol level before discharge
- D. Encourage the client to remain in the hospital for a few more days
Correct answer: B
Rationale: The correct intervention is to schedule a follow-up appointment for an outpatient psychosocial assessment. This option addresses the client's concerns and provides support for managing stress and preventing future crises, which is crucial for the client's long-term care. Administering antianxiety medication before providing discharge instructions (Choice A) may not effectively address the underlying concerns. Obtaining a blood cortisol level before discharge (Choice C) is important but not the priority in this situation. Encouraging the client to remain in the hospital for a few more days (Choice D) is not the best course of action as it may not address the client's anxiety and could potentially lead to other issues.
5. When caring for a client with acute respiratory distress syndrome (ARDS), why does the nurse elevate the head of the bed 30 degrees?
- A. To reduce abdominal pressure on the diaphragm
- B. To promote retraction of the intercostal accessory muscles of respiration
- C. To promote bronchodilation and effective airway clearance
- D. To decrease pressure on the medullary center which stimulates breathing
Correct answer: A
Rationale: Elevating the head of the bed to 30 degrees is done to reduce abdominal pressure on the diaphragm, aiding in lung expansion and oxygenation. This position helps improve respiratory mechanics by allowing the diaphragm to move more effectively. Choice B is incorrect as elevating the head of the bed does not directly promote retraction of the intercostal accessory muscles of respiration. Choice C is incorrect because although elevating the head of the bed can assist with airway clearance, its primary purpose in ARDS is to decrease pressure on the diaphragm. Choice D is incorrect because reducing pressure on the medullary center is not the main goal of elevating the head of the bed; the focus is on enhancing lung function and oxygen exchange.
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