Thanks everyone, they said he is one tough son of a bitch. Exact words.
He’s eating and drinking now and walking around, off supplemental oxygen and lowered pain meds considerably. 27k as of Friday. Haha insanity. But I wouldn’t let my buddy go without a fight.
They said his lung will actually expand about 10% to compensate but living with 1 lung is no problem for a dog. I had a buddy in school with one lung he was fine just had a deep weird voice.