depends on the hospital and the unit...I'm not sure what the scope of practice is for PCT's in florida, you could check with the board of nursing. I'm a PCT house float in ohio (I work in all units of 2 hospitals in our network)-
on med surg floors-
PCT's can do vitals, bladder scans, draw blood, remove catheters, and any other STNA type duties.
On our cardiac/step down units PCT's can do EKGs as well as all of the above.
In ER we can technically do more, because a PCT can also be an ER tech in some hospitals (again depends on hospital policy). I mainly work in ER because I like being able to do Catheters, Blood draws, ekg's, assisting the resident physician with procedures (as an extra pair of hands for sewing up lacerations, I&D's, helping with vascular ultrasounds, fetal heart tones), splints, and other stuff. We usually have a tech on the code blue team as well...its never a good situation, but an excellent learning experience. You're there mainly for chest compressions and as a supply runner.
Good luck, being a PCT will humble you quickly, and makes nursing school so much easier (you'll be way better prepared for clinicals and labs)