Final answer:
If a resident refuses to consume all of a meal initially given to him/her, the nursing staff should encourage the resident to eat the remaining meal later. It is also a good idea to consult a dietitian for further guidance.
Step-by-step explanation:
If a resident refuses to consume all of a meal initially given to him/her, the nursing staff should encourage the resident to eat the remaining meal later. It is important to respect the resident's autonomy and preferences, so forcing them to eat the remaining meal should not be done. It is also a good idea to consult a dietitian for further guidance to understand the resident's dietary needs and preferences.