A nurse is caring for a client who has multiple sclerosis and is experiencing progressive multifocal leukoencephalopathy (PML). Which of the following medications should the nurse recognize is associated with the development of PML?

A.Osmotic edema refers to fluid shifts due to changes in osmotic gradients (as seen in conditions like hyponatremia), not the inflammatory process of meningitis.

B.While inflammation is a key part of the body's response in meningitis, the edema is not a result of generalized whole-body inflammation. The edema is more directly linked to local inflammatory reactions in the brain triggered by the pathogen’s by-products.

C.Bacterial cell walls, endotoxins, and other components released by the bacteria directly stimulate inflammation, causing the breakdown of the BBB and allowing fluid and inflammatory cells to leak into the brain tissue.

D.This description is more aligned with the pathophysiology of conditions like hydrocephalus rather than meningitis. In meningitis, cerebral edema is primarily due to the inflammatory response, not abnormal CSF flow.

Choice A Reason:

"Do panting breaths several times a day." This statement is inappropriate. Panting breaths involve rapid, shallow breathing similar to what a dog does when it's hot. This technique may not be as effective in clearing mucus or promoting lung expansion compared to deep coughing. While panting breaths may have some benefits in promoting ventilation and increasing lung volume, they may not be as targeted or efficient in preventing atelectasis as other techniques such as deep coughing

Choice B Reason:

"Perform deep coughing twice a day." This statement is correct. Deep coughing helps clear mucus and secretions from the airways, reducing the risk of blockages that can lead to atelectasis. It promotes airway clearance and lung expansion, maintaining respiratory function. Regular deep coughing is particularly important for individuals with spinal cord injuries, as they may have impaired cough reflexes or weakened respiratory muscles, increasing their vulnerability to atelectasis.

Choice C Reason:

"Strengthen your chest muscles by performing therapy exercises." This statement is incorrect. While strengthening chest muscles through therapy exercises can be beneficial for overall respiratory health, it may not directly target the prevention of atelectasis. Atelectasis is primarily caused by the collapse of lung tissue due to mucus buildup or reduced lung expansion, rather than weakness of chest muscles. While therapy exercises may have other benefits such as improving respiratory function and endurance, they may not be the most effective strategy for preventing atelectasis in individuals with spinal cord injuries.

Choice D Reason:

"Get plenty of rest throughout the day." This statement is incorrect. Rest is important for overall health and well-being, but it may not directly contribute to the prevention of atelectasis. Inactivity and prolonged bed rest can actually increase the risk of atelectasis by reducing lung expansion and promoting mucus accumulation in the airways. While adequate rest is necessary for recovery and energy conservation, it should be balanced with activities that promote lung expansion and airway clearance, such as deep breathing exercises and mobility.