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Defining the ObservationRequest Table |
The next table you define will map to the OBR (Observation Request) segment of the message. To determine the data to be included in this table, return to the Message Browser and expand the OBR segment:
When generating the OBR segment, the only required field is Field 4 (Universal Service Identifier). For the tutorial application, the following fields will be generated:
| Field Name | Field Number | Description |
|---|---|---|
| 4 | Universal Service Identifier | A unique identifier code for the requested observation. This identifier consists of two sub-fields: Identifier, which uniquely identifies this observation, and Test, which provides a description of the observation requested. |
| 7 | Observation Date/Time | The date and time at which the observation was requested. |
| 25 | Result Status | This field is required by the HL7 standard if the OBR segment is followed by OBX segments. It gives the status of the results that follow in the OBX segments. In this tutorial, you will set it to 'F' (Final results). |
The next task is to create and define the ObservationRequest Table, using the same method as before:
- Create a new table by clicking the Table icon in the toolbar. The new table, Table0, appears in the Workspace under Tables.
- Right-click the new table and select Rename Table.
- Change the name of the table to ObservationRequest.
- Double-click the ObservationRequest table in the Workspace. The ObservationRequest Table window is displayed.
The ObservationRequest Table Window
- In the Description field, type Order for Laboratory Test. (This description is optional.)
- In the empty field in the Column Name column, type OrderID. Notice that when you start typing, a new row appears.
- In subsequent rows, in the Column Name column, type OrderDescription, OrderDateTime and ObservationResultStatus.
- In the Data Type column, select the String data type for all items except OrderDateTime. For OrderDateTime, select the Date Time data type.
- In the Outbound Script column of the ObservationResultStatus row, click the ... (ellipsis) button. The Editing Script window appears.
- In this window, type the following Python script:
value = 'F' |
- Click Ok to close the Editing Script window.
Your table should look like this when you are finished:
Fields For The OBR Segment