They've been saying LPNs were being phased out for forever now. LPNs may very well be in the process of being phased out in hospitals, but those jobs seem to go to RNs, not to PCTs. From what I've personally experienced, the job of a PCT is very much different than the job of an LPN.
I left the hospital in 2001. At the time I worked oncology. I did ECGs, phlebotomy, and I did IVs. I have an IV certification if that counts, but LPNs are trained to work with IVs in nursing school. In 2001 I was in a higher position than the PCTs. If the PCT had training in ECGs or foleys or whatnot they could do them, but usually they did not. This required a certain type of certification through the hospital.
I haven't ever worked with a PCT that could give prescription meds, but I have heard that they do in some places.....I don't know if that is true or not.
I've never worked a doctor's office so I don't know much about how they run. I see a ton of ads for office LPNs, RNs, and sometimes MTs. You may have a better chance at working the departments you want at a hospital as a PCT because the hospitals in this area do have a strong preference for RNs.
I'd think about what aspects of the patient's care I wanted to provide and go from there. Contact a recruiter at a local hospital and ask them if they hire LPNs or PCTs for certain units. Ask what the job description for each is.
Good luck to you.