Dealing with my father's hospitalization

Sorry for being absent... I am dealing with my father being in the hospital again. They are due to release him today, but my mother and I both agree that he shouldn't be released. He heart rate went up to 119, and he was asleep yesterday as it was happening. He didn't have this problem any other time. Most of the doctors are telling my mother that his body is riddled with cancer, but his lung doctor says it is not true. My dad has heart issues, so much he has a pacemaker and 7 stents. He also has COPD and ephazima. He has been sick since March, and this is his third time in the hospital since he has been getting sick. I am angry with the hospital he is in because they won't do a CAT scan that his lung doctor is requesting. That is why he is being released, and on Monday, he is to have it as an outpatient now at a different hospital. My mother says he has lost all his color in his face, is on oxygen full time now, he has lost a lot of weight, and can barely walk using a walker. I am leaving tomorrow to head down there and help my mom. I have cried, and I know I will cry when I see him because the last time I saw him, he was walking around and joking and just being his normal self. I am going to try and hold it back so he doesn't see me cry. Over the phone, I can tell my mom is worried and trying to hold back tears. I am at a loss. My anxiety is through the roof right now and my depression.