This section provides a summary of the sequence diagram for Use Case-04:
Use Case-04: HCP Requests PS-CA On Demand
A Health Care Provider in any care setting requests and uses a PS-CA on-demand at the point of care, including for unscheduled/scheduled local care.
Implementation Option 1: CA:FeX $summary operation
This option is recommended for systems where the clinical data needed to generate the Patient Summary is internal to the Clinical Data Repository.
Note that generally with $summary operation, servers may choose not to produce “fresh” patient summaries on every request. Due to performance impacts, servers may choose to generate Patient Summaries on a nightly or cached basis, and return those.
Implementation Option 2: CA:FeX $docref operation
This option is recommended for systems where the clinical data needed to generate the Patient Summary is either external to the Clinical Data Repository generating the summary, or distributed across various internal and external data sources.
Additional Considerations
The sequence diagrams included in this section do not showcase all of the possible combinations of IHE profiles and transactions that can be used for a particular implementation pattern. For example, ITI-83 transaction can be used in place of ITI-78 if the preferred implementation pattern is PIXm/PMIR.