Final answer:
The social worker has the primary responsibility for developing comprehensive psychosocial treatment plans for new residents, focusing on their physical, emotional, social, and environmental needs.
Step-by-step explanation:
The primary responsibility for developing comprehensive psychosocial treatment plans for new residents generally falls to the social worker. The social worker is trained to assess the physical, emotional, social, and environmental needs of residents, particularly in a health care or residential setting. They collaborate with residents, families, and the healthcare team to create a plan that addresses these needs and assists with the residents' overall well-being and integration into the facility.
The Director of Nursing (DON) may have a role in overseeing the medical and nursing care aspects of the treatment plan, while the charge nurse usually manages the day-to-day clinical operations within a unit. An administrator would handle the overall management of the facility but is typically not directly involved in the creation of individual psychosocial treatment plans.