You do not click or double on the first activity. " Get Attribute" activity is the first activity to retrieve and inspect the values, then you may need additional " Get Attribute " activity to retrieve and inspect other values. E.g.
Get Attribute - Exam
Get Attribute - Date
Get Attribute - Patient Name
Store the tableRow
Repeat above steps until a match is found that satisfies all the attibutes, then the tableRow is the correct value.
Finally click or double click the row.