Several questions from below that were not answered.
No, your OCS flight physical will not be good for API. The other post about NAMI Whammy is no joke. No trying to scare anyone, just letting it be known that every so often, you'll get all the way to API and then get the boot from NAMI.
Yes, you can get your flight physical done in one day. As for getting it done on a Saturday, I am not sure. We all know how much the medical clinic enjoys working on the weekends.
There was another question about what tests they run at the API flight phys---all of them. Plan on being there for a while with your whole class, running around like a bunch of fools trying to track down everyone you have to go see.
The flight physicals get a little less "detailed" as the years go on (except for the 5-year long form), so just get through these and there isn't much to stress about--besides getting through flight school and what not :icon_wink