To view, edit, and/or delete ordered tests from requests, go to a request (e.g. using Search Requests).
The Ordered Tests can be viewed in the bottom right field on the View Requests screen, as indicated below:
To edit the tests, click on the edit (pencil) icon on the top right corner of the field. 
This will bring up the following window:
To add tests, type a test into the 'Test:' search field on the right, select it from the list and the click on the 'Add' button.
Alternatively, you can do the same using a test code set up by your laboratory, or select Microbiology Orders from the provided drop-down lists and search field.
To delete tests, click on the trashcan icon 
The following message will pop up:
Click 'OK' if you are sure, or "Cancel' to go back.