In the Identification activity of the Information Processing in Health History, you are instructed to identify differential diagnoses throughout your transcript (located in the middle of this screen).
Click on something the patient said to you or one of the yellow vital signs at the top of the transcript to select proof of a diagnosis. When you do so, you'll see the available diagnoses pop up
Click on the diagnosis that you are proving. The diagnosis and the proof you selected will then appear on the right side of the assignment. To remove evidence for a diagnosis, click the X next to it.
Once you've gone through your transcript and provided all proof for any relevant diagnoses, click Continue to move to the next part of the activity.