In NJ you CANNOT take the LPN exam unless you graduate from a practical nursing program.
In additon as nearly all LPN programs are vocational in nature college credits are not used. Generaly you would be 'exempted' from the LPN level A&P and nutrition if you successfully completed those courses at the collegiate level. Otherwise there is no direct correlation between associates level nursing courses and practical nursing courses and clinicals. Scope of practice and depth of information (for example PN students are taught basic ECG's but RN students are generally given more instruction on interpretation and recognition of various rhythms and arrhythmia)
Practical nursing students are required to do clinicals in the hospital setting in addition to rehabilitation units, long term care, pediatric facilities, OB/maternity units, and psychiatric hospitals/units. (LPN's must complete clinical rotation in general med-surg, pediatrics, geriatrics, maternity/women's health, and psychiatric/mental health nursing plus theory coursework in order to be eligible for the NCLEX-PN exam).
In addition, as most nursing programs are set up differently with the same end goal it is rare that you can transfer nursing courses from one program to the next (with the exception of an RN who completed an associates or diploma program who is accepted to a RN->BSN completion program). I don't think that I've heard of anyone completing only 75% of a ASN program and successfully transferring into a BSN program, but that's not to say it is impossible. I looked at four BSN programs in NJ, aside from those that offer RN to BSN options, only two programs stated that they would consider accepting a transfer student into the nursing program if they partially completed another nursing program on a case by case basis.
As others have said, nurse case managers are generally RN's. Nurse case managers generally are required to have several years of clinical experience before being hired as a case manager in an insurance company or elsewhere. In order to become a CCM, a nurse MUST be a registered nurse with a specific amount of documented, paid work experience. A few other professionals are eligible to become case managers such as certified social workers, licensed social workers, etc.
Most non clinical nursing positions whether administrative or otherwise are relegated to registered nurses who have several years of bedside or other clinical experience. Nursing positions in an office setting, such as a clinic, are available for LPNs or RNs they just don't necessarily pay as well as a hospital position. Not everyone wants to work in a hospital setting, I don't wants to work in a hospital. I'm very happy with my home health nursing position working with medically complex/medically fragile pediatric patients.