A nurse is assessing a client who has Lewy body dementia. The nurse should recognize that which of the following is responsible for changes in thinking, communication, movement, and emotional processing in Lewy body dementia?

A. "I can't see anything from the sides of my eyes." This statement suggests a visual field deficit, which may be indicative of conditions affecting peripheral vision, such as glaucoma, retinal detachment, or optic nerve disorders. It is not a typical symptom of cataracts.

B. "My vision is almost gone from the center part of my eye." This statement indicates a central visual impairment, which is a common symptom of cataracts. Cataracts cause clouding of the lens, leading to blurred or dimmed vision, especially in the center of the visual field. This symptom often progresses gradually over time.

C. "My contact lenses just don't fit like they used to." This statement suggests discomfort or fit issues with contact lenses and is not specifically indicative of cataracts. It may be related to changes in the shape or health of the cornea, conjunctiva, or tear film.

D. "I keep seeing flashes of lights moving around in my eye." Flashes of light in the visual field are not typical symptoms of cataracts. They may indicate other ocular conditions such as vitreous detachment, migraines with aura, or retinal disorders.

A. A client who has coronary artery disease (CAD) and Bell's palsy: Bell's palsy, a condition characterized by sudden, temporary weakness or paralysis of the facial muscles, does not directly increase the risk of complications following CABG surgery. While Bell's palsy may affect facial muscle function, it typically does not impact respiratory function or cardiovascular stability during surgery.

B. A client who has coronary artery disease (CAD) and chronic diverticulitis: Chronic diverticulitis, inflammation or infection of the diverticula in the colon, is not directly related to increased risk for complications following CABG surgery. While diverticulitis may require medical management and dietary modifications, it does not typically affect cardiovascular or respiratory function during surgery.

C. A client who has coronary artery disease (CAD) and chronic allergies: Chronic allergies, while they may cause respiratory symptoms such as nasal congestion or rhinitis, are not typically associated with increased risk for complications following CABG surgery. Allergies alone are unlikely to significantly impact cardiovascular stability or respiratory function during surgery compared to conditions such as COPD.

D. A client who has coronary artery disease (CAD) and chronic obstructive pulmonary disease (COPD): A client with CAD and COPD is at the highest risk for complications following coronary artery bypass graft (CABG) surgery. COPD is a chronic respiratory condition characterized by airflow limitation and increased airway resistance, often accompanied by emphysema and chronic bronchitis. These respiratory impairments can significantly impact the client's ability to tolerate anesthesia, mechanical ventilation, and postoperative respiratory function. COPD increases the risk of complications such as atelectasis, pneumonia, exacerbation of COPD, and respiratory failure following CABG surgery.