Well I have some good news. My dad is home. When he found out about the whole insurance thing he called his doctor and said, "Ok you have two choices here. Either you check me out of the hospital, or I check myself out." The doctor came up to the hospital to see him and released him to go home with a BUNCH of meds. He can do the biopsy as an outpatient procedure, so he's going to schedule it for next week some time.
They said that they think the spot on the lung is actually somehow related to some sort of infection he had last year when he cut his knee. It wasn't a staph infection, it was something else, but apparently this particular type of infection usually reappears once you've had it, and it usually shows up on the lungs. How odd... I wish I could remember the name of the infection he had. Anyway, he's still moving kind of slow and sleeping a lot. But he seems much happier now that he's home.
He was able to talk to my mom yesterday, who somehow found a way to call home from Brazil. And the best news of all is that he quit smoking. He hasn't smoked in three days. I'm so proud of him.
I'll readjust my schedule to make sure he gets to any appointments and has whatever he needs. I'm just so glad he's home and they don't think the spot on the lung is cancer. Thanks again for your prayers and support you guys. I do appreciate each one of you.