A nurse is admitting a client to the hospital unit. Which one of the following elements of the client's history and physical assessment increases the risk for the development of delirium?

A) "Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor." This statement describes a mechanism associated with glaucoma, not cataracts. In cataracts, vision changes occur due to the opacity or cloudiness of the lens, not changes in intraocular pressure.

B) "Vision changes occur when blood vessels leak fluid or blood under a portion of the retina." This statement describes a mechanism associated with retinal diseases like diabetic retinopathy, not cataracts. In cataracts, the lens becomes cloudy, affecting the passage of light through the eye.

C) "Vision changes occur when the cloudy lens alters the passage of light through the eye." This statement is correct. Cataracts cause the lens of the eye to become cloudy, which interferes with the passage of light through the eye. This results in vision changes such as blurred vision, glare, and difficulty seeing in low light conditions.

D) "Vision changes occur when retinal tissue pulls away from the blood vessels in the eye." This statement describes a mechanism associated with retinal detachment, not cataracts. In cataracts, the lens becomes opaque, but the retinal tissue remains intact.

A. "Your heart condition is caused by thickening of the ventricular walls and septum." Thickening of the ventricular walls and septum is characteristic of conditions like hypertrophic cardiomyopathy, not pericarditis. This statement does not accurately describe the cause of pericarditis.

B. "Your heart condition is caused by excessive stretching of the ventricles." Excessive stretching of the ventricles is not a typical cause of pericarditis. While stretching of the heart muscle may occur in certain conditions, it is not directly related to pericarditis.

C. "Your heart condition is caused when the ventricular tissue becomes fibrous and fatty." Fibrous and fatty changes in ventricular tissue are features of conditions such as ischemic cardiomyopathy, not pericarditis. This statement does not accurately explain the cause of pericarditis.

D. "Your heart condition is caused from stiffening of the walls of the ventricles." Pericarditis is inflammation of the pericardium, the sac-like membrane surrounding the heart. When the pericardium becomes inflamed, it can stiffen, restricting the heart's movement and leading to chest pain. Therefore, option D accurately explains the cause of pericarditis, attributing it to the stiffening of the pericardium.