Final answer:
The two filing systems used for medical records are alphabetic and numeric, with alphabetic based on patient's last names, and numeric using unique patient numbers.
Step-by-step explanation:
The two filing systems that are commonly used to file medical records are alphabetic and numeric. The alphabetic filing system organizes records in alphabetical order, usually by the patient's last name. This is straightforward and allows for easy retrieval if the name of the patient is known. However, it's not without issues such as misfiles and confusion with common last names. On the other hand, the numeric filing system assigns a unique number to each patient's file, which can be further organized by a terminal digit system or a middle digit system. Numeric filing systems are beneficial for large hospitals or clinics with many patients, as it reduces the chances of misfiles and can improve privacy.