Which statements must exist to support a Health Information Exchange (HIE)?

• A. Standards
• B. Infrastructure to support aggregation of data into a single patient record
• C. Infrastructure to support a regional network
• D. All of the above

Answer: (D)

To enable meaningful health information exchange, three elements work together: standards, data aggregation capability, and a regional network infrastructure.

Standards are essential because they define how data is formatted, coded, and transmitted so different systems can understand each other. Without common formats and vocabularies, messages from one system may be misinterpreted or unusable by another.

Aggregation infrastructure is needed to bring data from multiple sources into a single, usable patient record. This involves data normalization, patient identity matching, and consolidation so clinicians can see a coherent longitudinal view rather than siloed fragments.

Regional network infrastructure provides the connected environment that transports data securely between participating organizations. It supports reliable communication, access control, auditing, and governance across the region, making exchange feasible in real time or near real time.

Together, these components—standards, data aggregation, and a regional network—are all required for an effective Health Information Exchange.