This test applies to the XCPD Responding Gateway actot that supports the Deferred Response Opiton. See ITI TF-1: 27.2.2 and ITI TF-2b: 3.55.6.2.
This test is performed with the Gazelle Patient Manager simulator: https://gazelle.ihe.net/PatientManager
See also the User Manual for testing XCPD with the Patient Manager here.
The instructions for this test are detailed in the User Manual for the Patient Manager tool, so they are not repeated here. See: https://gazelle.ihe.net/gazelle-documentation/Patient-Manager/user.html#deferred-response-on-responding-gateway
After you perform the test, the Patient Manager tool will produce a Test Report. Copy the Permanent Link to to Test Report, then paste that link into Gazelle Test Management as the results for this test.