Final answer:
The correct care for a hearing aid is to remove it before showering, as it can be damaged by water. Other options provided, such as applying hairspray after insertion or cleaning daily with water, may harm the device.
Step-by-step explanation:
The question asks about the proper care for a resident who wears a hearing aid. Among the options provided, the correct action is to remove the hearing aid before showering.
This is because electronic devices like hearing aids can be damaged by water. The other options provided contain actions that could potentially harm the hearing aid. Using hairspray after placing a hearing aid can lead to the hairspray coating and potentially clogging the microphone or other parts of the device. Cleaning the earmold and battery case with water daily could also cause damage unless the manufacturer specifies that these parts are water-resistant and provides appropriate cleaning instructions. Lastly, replacing batteries should be done based on usage indicated by the hearing aid's performance or as specified by the manufacturer, rather than on a fixed weekly schedule.