A few minutes before serving, remove the chicken from slow cooker and shred or cut into cubes.
Return chicken to the slow cooker, and let it cook for 5-10 more minutes.
*If you prefer brown rice or wild rice, leave the parboiled rice out of the slow cooker when adding the other ingredients. While the soup is cooking in the slow cooker, prepare 1 cup uncooked brown or wild rice according to the package directions (once cooked, this will yield approximately 3 cups of rice). Stir the cooked rice into the soup just before serving.