I did it, but it almost killed me. While in LPN classes I worked full time. I took ALL of my RN pre-req's at that time as well. 23 credit hrs in first sem. I found a school 2hrs from me that had pre-req's one night a week. I was in class from 7am untill 1030pm 3 nights a week Mon, Tue, Wed. I worked night shift as an NA 12hrs Thu, Fri, Sat. Then went on for my RN through Excelsior while working TWO full time jobs, 12hr nights. I worked 2 full time jobs, watched our youngest all day (3) while my wife went to LPN school. She was a whimp---didn't work at all while in school.
As a side note, ALL of my school was paid for by my employer/pell grants/scholorships. I am now an RN working only one job, 3-12's on nights. I make 30$ an hour with differentials and all in a low cost of living area of rural Nebraska.