ORU^R42
ORU – Unsolicited Device Event Observation
The R42 trigger event is used for observation reports that identify a device-sourced event (e.g., transition on an infusion pump between primary and secondary modes of operation) that is relevant to clinical workflow but that does not require a response from a clinician or clinical management system (in which case, an R40 alert message should be used). These events are episodic (vs. periodic), require low latency and appropriate prioritized handling (i.e., should be communicated immediately after the event is signaled), and typically require low transmission bandwidth. R42 messages do not need to provide for an application level response, as does the ORU^R40 message (via the ORA^R41 message).
Use examples of this message include:
Message Types
Message Type
Trigger Structure
Return Structure
Event Flow
TriggerR42
SendORU_R01
ReceiveACK
ACK choreographyORU_R01