Free Practice Questions for EPIC EDI101 Exam

The Communications Daemon is only responsible for the transport of the message (connecting to the external system and moving raw data). The process of translating that data and filing it into Epic’s database (Chronicles) is handled by the Filer Daemon .

Patient Validation is a protective step taken during the filing process for all incoming patient-based interfaces . Whether the interface is handling admissions (ADT), clinical results (ORU), or pharmacy orders (RDE), the system must verify that the patient identified by the ID matches the demographic data in the message before any data is written to Chronicles.

The primary purpose of the Error Log Report is to provide a granular list of individual Error instances. While these errors are linked to messages, the report result list displays the errors themselves, allowing analysts to see the specific failure reason, time, and error code for every occurrence.

HL7 uses specific characters as delimiters to separate data. Based on a standard MSH segment (MSH|^~ & ), the characters & (subcomponent separator) and ~ (repetition separator) are special characters. If these characters appear as part of the actual data text, they must be " escaped " using the escape character (usually \) so the interface parser doesn ' t mistake them for structural separators.

The Message Companion relies on a successful link between a message and a specific record (like a Patient or Encounter). If a message encounters a failure error during processing (e.g., a critical identification error), Bridges may be unable to definitively link that message to the patient record in Chronicles. Because the link is missing, the message will not appear in tools like the Message Companion that filter specifically by that patient ' s ID.

Bridges management tools allow administrators to select multiple interfaces—regardless of whether they are sending data (outgoing) or receiving data (incoming)—and issue a " Start " command to their respective Communications Daemons simultaneously. This facilitates efficient management during system startups or after maintenance.

Incoming interfaces must identify the correct ID Type to successfully locate a record in Chronicles. They do this in two primary ways:

Default ID Type: The interface can be configured with a fallback ID type to use if no other information is provided.

External System Settings: The interface can look at identifiers within the HL7 message (like the Assigning Authority in PID-3.4) and match them against the " External System Settings " defined in the ID Type configuration . Option C is incorrect because searching without a defined ID type would be inefficient and could lead to incorrect record matches.

Retriggering is specifically an outgoing interface action. Therefore, Incoming messages (Option D) cannot be retriggered. Additionally, to maintain a clear audit trail and prevent logic errors, Bridges does not allow you to retrigger a message that was already the result of a retrigger (Option A).

Similar to profile variables, purge settings follow a hierarchy where the more specific configuration overrides the more general one. Because the Interface Specification is more specific than the System Definitions, its value of 45 days takes precedence. Messages for interfaces using that specification will be eligible for purging after 45 days.