

I'd take some classes in addition to studying for the MCAT.
Well, I do work and volunteer at the hospital, with both experiences providing the best patient contact a pre-med could possibly get. I will be continuing both into next spring as well.
Even with those to activities, I could still invest a lot of time and energy into the MCAT. With 8-10 credits of course work thrown in to get that 3.4, MCAT study time would be reduced.
You also want to keep in mind, your GPA can actually go down. But if you're sure you can bring it up, I would take the spring semester rather than graduating this fall.
MCAT is much more important . if you taking classes are going to hinder you from studying, then I strongly advise against it. I would try to beast the MCAT (>32). If you do that, then no one will say anything about your gpa because your mcat score will be highly competitive. You