Final answer:
The nurse should collaborate with a psychologist, implement a visual communication system, and coordinate with a speech therapist.
Step-by-step explanation:
The nurse should plan to take all of the above actions (A, B, and C).
A. Collaborating with a pediatric psychologist to conduct a comprehensive assessment of the child's developmental and behavioral needs can help identify the specific challenges the child with autism is facing and inform the development of an effective care plan.
B. Implementing a visual communication system using tools such as picture schedules or communication boards can support the child's communication and understanding of daily routines and activities.
C. Coordinating with a speech therapist to develop communication strategies tailored to the child's unique communication style can further enhance their ability to express themselves and interact with others.