What is a common challenge in patient matching across sites in Care Everywhere?

• A. Duplicates and inconsistent identifiers across sites.
• B. Too few records.
• C. Always perfect cross-site matching.
• D. No use of identifiers.

Answer: (A)

Patient identity linking across sites is hampered by duplicates and inconsistent identifiers. In Care Everywhere, each health organization may assign its own medical record number and store demographic data in slightly different ways. When a patient’s information comes from multiple sites, variations in names, spellings, dates of birth, addresses, or even missing identifiers can prevent the system from confidently linking records that belong to the same person. This leads to duplicates or fragmented histories where a single patient’s information appears as separate records at different sites. Understanding this helps explain why data quality and harmonizing identifiers across sites are central to reliable cross-site matching. The other options don’t reflect the real-world matching challenge: there isn’t a problem of too few records, cross-site matching is not always perfect, and identifiers are indeed used, though inconsistently.