Which data exchange mechanism does Care Everywhere primarily rely on for structured clinical summaries?

• A. Direct database replication
• B. CCDA-based document exchange, with HL7 transport used for routing in the background.
• C. FHIR-based REST API
• D. Email attachments

Answer: (B)

Care Everywhere shares structured clinical summaries by exchanging CCDA documents. CCDA, or Consolidated Clinical Document Architecture, provides a standardized, machine-readable format for essential patient data—such as problems, medications, allergies, labs, and encounters—that different EHRs can interpret consistently. The delivery of these CCDA documents is handled in the background by HL7 transport, which routes the data to the correct destination securely within the network. This approach enables interoperable sharing of a complete, structured summary without needing live database replication or API-based queries. It’s more structured and reliable than sending email attachments, and it uses a different mechanism than the modern FHIR REST APIs, which are not the primary method described here.