3rd nuticionist appoinment today

Well I'm closer and closer to surgery. Happy but can't stop being scared & worried at the same time. I was given a packet with all the things that I have to get done by my last nutricionist app. 1- blood work 2- 6 months of weight management which I already have done 3/6 , 3- have to attend 2 support group meetings ( can't wait to see what that's about) 4- physc appointment 5- ultrasound of stomach? And gallbaldder? Wondering what their looking for with the ultra sound 6- pulmonary consult (curious to know how that's going to be never had it) and 7- cardiology consult wondering if he's going to make me have a stress test or what the consult is about. All this has to be done in the next 3 months. Can anyone tell me how the ultra sound test goes and what they look for as well as the cardiology & pulmonary consult... Thanks