The nurse educator asks the student nurse to explain the most common causes of blindness in the United States. Which of the following options will the student nurse select as one of the top causes of blindness?

Choice A Reason: This is incorrect because drawing with crayons may be too childish or frustrating for a client with moderate Alzheimer's. Crayons may also pose a choking hazard or cause messes. The nurse should provide activities that are suitable for the client's cognitive and functional level, as well as their interests and preferences.

Choice B Reason: This is incorrect because dangling ribbons or a mobile may be too stimulating or confusing for a client with moderate Alzheimer's. These items may also trigger agitation or wandering behaviors. The nurse should provide activities that are calming and familiar for the client.

Choice C Reason: This is correct because listening to music, watching TV, or videos can be enjoyable and beneficial for a client with moderate Alzheimer's. Music can evoke memories, emotions, and positive responses. TV or videos can provide entertainment, education, and socialization. The nurse should choose music, TV shows, or videos that are appropriate and meaningful for the client.

Choice D Reason: This is incorrect because board games may be too complex or challenging for a client with moderate Alzheimer's. Board games may require memory, concentration, logic, or strategy skills that the client may have lost. The nurse should provide activities that are simple and easy for the client to follow.

Choice A Reason: This is incorrect because Ménière's disease is not caused by an allergic response. Ménière's disease is a disorder of the inner ear that causes vertigo, tinnitus, hearing loss, and a feeling of fullness in the ear. The exact cause of Ménière's disease is unknown, but it may be related to fluid imbalance, infection, trauma, or autoimmune reaction.

Choice B Reason: This is correct because diphenhydramine can help offset the nauseous feeling. Diphenhydramine is an antihistamine that blocks histamine receptors in the brain and inner ear, which can reduce nausea and vomiting associated with vertigo.

Choice C Reason: This is correct because anticholinergics will help you rest. Anticholinergics are a class of drugs that block acetylcholine receptors in the brain and body, which can have sedative effects and reduce motion sickness. Diphenhydramine has anticholinergic properties.

Choice D Reason: This is correct because diphenhydramine can help reduce vomiting episodes. As mentioned above, diphenhydramine can reduce nausea and vomiting by blocking histamine receptors in the brain and inner ear.