I am an LPN student, and from what I've read, there are state nursing acts that dictate the scope of practice within that certain state. Then, within that state, facilities can limit or broaden the duties of an LPN within that scope of practice.
Here in Rochester, when I went in to have my son two nurses that attended me during "labor" (I was c-section, so I didn't really "labor" per se) were LPNs. Afterwards, in the family suite, my son and I were attended by mostly RNs, but one young lady was an LPN, but going to school to be an RN.
However, that was Highland Hospital, part of StrongHealth. When my step daugher went to General to have her baby just four months later which is not part of StrongHealth, it is ViaHealth, one of the nurses on her floor said that LPNs were hired, but not on L&D floors, and only as scrub nurses or pill pushers on "non-vital" wings. :angryfire I remember her fully, because at that time I was debating whether I would apply for the LPN program or not.
The nurse that does the dialysis procedures on my husband's friend is an LPN.
Same city: different health systems: different rules: same scope of practice.
LPNs are nurses, though, and depending on your preferences and your choice of speciality, being an LPN can be very rewarding and satisfying. The trend I am noticing is LPN for Long-Term care and Assisted Living. (But then again, here in Rochester, you make more in the LTC/AL facilities than you would in a MD office or hospital).
Eventually I will get my RN, but in the meantime, I am proud to be an LPN student!