Final answer:
A medical assistant typically does not open letters marked Confidential or Personal as they contain sensitive information meant for a specific individual's eyes only. Medical assistants must respect these markers as an indication of privacy.
Step-by-step explanation:
Generally, a letter marked Confidential or Personal is not opened by the medical assistant. When mail arrives at a medical office, it is typically the medical assistant's job to sort and distribute it, but certain types of correspondence are meant to be seen by the recipient only. Those that are marked as Confidential or Personal contain sensitive information meant for specific individuals, such as a doctor or medical practitioner, and it would be inappropriate for others, including medical assistants, to view their contents. It is important for a medical assistant to recognize these markers as an indication of privacy and to respect the confidentiality by not opening these letters.