Final answer:
To prevent fear and agitation in a person with dementia while wearing a mask, it's best to explain the need for the mask calmly and reassuringly.
Step-by-step explanation:
When caring for a person with dementia who requires isolation precautions, it's crucial to prevent fear and agitation that could be caused by wearing a mask. To address this, one should explain the need for the mask in a calm and reassuring manner. By doing so, the person with dementia can become more comfortable with the situation, understanding that the mask is a protective measure rather than a threat. This approach respects their dignity and can help maintain a cooperative environment, which is especially important when infection prevention measures are necessary, such as diligent hand hygiene and equipment disinfection to prevent surface contamination.