Correct Answer: A

Rationale: The correct answer is A: Perform weight-bearing exercises. Weight-bearing exercises are crucial for preventing bone density loss in clients with osteoporosis. These exercises help strengthen bones and reduce the risk of fractures. Option B, avoiding crossing the legs beyond the midline, is not directly related to preventing injury in osteoporosis. Option C, avoiding sitting in one position for prolonged periods, is important for preventing pressure ulcers but does not specifically address preventing injury in osteoporosis. Option D, splinting the affected area, is not a standard recommendation for preventing injury in osteoporosis.

Correct Answer: A

Rationale: Corrected Rationale: Potassium levels should be monitored closely in a patient receiving digoxin to avoid hypokalemia. Digoxin can increase the risk of developing life-threatening arrhythmias in the presence of low potassium levels. Monitoring sodium, calcium, or glucose levels is not specifically necessary for patients on digoxin, making choices B, C, and D incorrect.

Correct Answer: C

Rationale: The correct action the nurse should take for a client at risk for developing DVT is to apply sequential compression devices to the client's legs. This intervention helps prevent venous stasis by promoting circulation and reducing the risk of DVT. Encouraging the client to remain on bed rest (Choice A) can actually increase the risk of DVT due to immobility. Massaging the client's legs every 4 hours (Choice B) can dislodge blood clots and is contraindicated in DVT prevention. While administering anticoagulants as prescribed (Choice D) is a treatment for DVT, it is not a preventive measure for a client at risk.

Correct Answer: A

Rationale: The correct answer is to monitor potassium levels in patients receiving furosemide. Furosemide is a loop diuretic that can lead to potassium loss in the urine, potentially causing hypokalemia. Monitoring potassium levels is crucial to prevent complications associated with low potassium levels, such as cardiac arrhythmias. Monitoring sodium levels (choice B) is not typically necessary with furosemide use, as it primarily affects potassium levels. Calcium levels (choice C) and glucose levels (choice D) are not directly impacted by furosemide and require monitoring for other conditions or medications.

Correct Answer: A

Rationale: Encouraging the client to increase fluid intake is essential to promote airway clearance in pneumonia. Adequate hydration helps to thin respiratory secretions, making them easier to expectorate. Suctioning every 2 hours may be too frequent and can lead to airway trauma and irritation. Chest physiotherapy is not typically indicated for pneumonia unless there are specific complications. Administering oxygen via nasal cannula may be necessary to maintain oxygen saturation but does not directly promote airway clearance.