Final answer:
A certified medical assistant is required to maintain their credentials through ongoing continuing education, which involves various forms of professional development to stay current in the field.
Step-by-step explanation:
A certified medical assistant must maintain their credentials through the method of continuing education. This process typically involves completing a certain number of education units within a specified timeframe. These units can often be accumulated through attending workshops, seminars, or conferences, as well as through online courses tailored to medical assisting. This commitment to ongoing learning ensures that medical assistants stay up-to-date with the latest medical practices, technologies, and regulatory requirements.