I went for my PAT today. What a LONG process....including a written test. Now have to see my cardiologist before April 29th - my surgery date. I am SOOOO nervous about the liquid diet...not being full enough...... I have LOTS of different Quest shake powder, crystal light, sugar free pudding and jello, and canned soups. I will get some yogurt too to have on hand. What was your feelings?