The infection in your lungs appears to have cleared up, so you seem to be wiggling in the right direction. We've been discussing with the doctors what to do next, and it looks like we might give you one more chance to fly without the steroids. I'm convinced that you didn't have a fair shake, last time. But it depends on your behavior these next few days. If your respirator needs go up, we'll probably have to juice you up with "performance enhancing drugs." If they go down, then we'll kick you out of the nest and see how far you make it before you smack into a tree or get snatched up by a hawk. Nature is cruel sometimes, dearest. Survival of the fittest.
I feel a lot more confident than the doctors that you can do well off of the endo-tracheal tube. On the tube, you tend to slack off; fail to live up to your true respiratory potential. When your blood oxygen level is low, you breath like crazy until you get to 100 percent. Because the ventilator is taking extra breaths FOR you, something in your baby brain tells suggests that you should take a breather from... uh... breathing. At that point, you let the ventilator do all of the work for you and the oxygen in your blood promptly declines. At this point, the cycle continues and you start breathing again like crazy until you are back at 100. This seemed to bewilder the respiratory technicians, at first. All of them were utterly convinced that you had a heart condition and that all of your blood was being shunted to one side of your body, then the other. Apparently, a heart defect and laziness look very similar.
On the CPAP, you didn't get any "freebie breaths." You had to take them all on your own, so at no point could you just take a break and let the ventilator do all the work for you. As a consequence, your blood oxygen levels remained more consistent. There was no room for laziness. I've taken note of this detail for parenthood, later. You'll be doing your own science fair projects. I'm afraid that if I help you, I'll end up doing them all for you.