The master patient index (MPI) is a database that lists all identifiers assigned to one client in all the information systems used within an enterprise
It assigns a global identification number for each client and allows clients to be identified by demographic information provided at the point of care. When the MPI cannot match a client's record based on demographic data, what is provided to the user? 1. The data dictionary resources
2. Non-citizen information so that the user may find a different identifier
3. All possible matches so that the user may view and select
4. The Social Security number
3
Rationale: When the MPI cannot match a client's record based on demographic data, all possible matches are provided for the user to view and select. The MPI may use first and last names, birthdates, Social Security numbers, and driver's license numbers. It cannot rely on a single type of number, such as a Social Security number, because of duplicates and the fact that some people, such as noncitizens, may not have one.
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