my wife is in a shot stay nursing home she has fluid on her stomach and legs and hips she lost a lot of weight and had no energy and was in a state of malnutrition and fell a few times. I took her to an emergency room at the St Cloud Hospital in our state of MN . she weighed 122 Lbs she stayed in the hospital for about 4 to 5 days her blood pressure was 78/55 so the gave her fluids to bring it up but she always had low blood pressure. the hospital felt she could be better served in a shot stay nursing home.When she left after the 4 days and 10.5 liters of fluid she weighed 150 Lb. she is now at 165 Lbs and the doctors can't figure out where the fluid is coming from she has had 2.5 liters of fluid removed from her stomach twice but it all comes back. she has had a gastric bypass in the 70s all her test of the fluid ultra sounds cat scans and the test of the fluid seem to be fine. no one can find the leak. they are going to check her liver for any cancer or liver decease but she shows no symptoms of any malfunction in her liver. My question is if they find nothing what is the next step.