Final answer:
The recommended distance around a Nursing Assistant when communicating with a resident who has a mental illness is 10 feet.
Step-by-step explanation:
When communicating with a resident who has a mental illness, the recommended distance around a Nursing Assistant (NA) is 10 feet.
This distance helps to maintain personal space and reduce the risk of triggering any possible anxiety or discomfort for the resident. It also allows the NA to observe the resident's body language and facial expressions more effectively, which is crucial for understanding their needs and emotions.