Final answer:
The American Association of Medical Assistants (AAMA) and the National Center for Competency Testing (NCCT) are two professional organizations that guide the profession of medical assisting.
Step-by-step explanation:
Two professional organizations that guide the profession of medical assisting are the American Association of Medical Assistants (AAMA) and the National Center for Competency Testing (NCCT). The AAMA is the largest professional organization for medical assistants in the United States. They provide certification, continuing education, and advocacy for the profession. The NCCT is another recognized organization that offers certification and supports medical assistants in their career development.